It's about one-two-thousand-five-hundredth as big as Puerto Rico.
In other words, 847.20 feddans is 0.000401234 times the size of Puerto Rico, and the size of Puerto Rico is 2,492.310 times that amount.(formally the Commonwealth of Puerto Rico, a.k.a. Estado Libre Asociado de Puerto Rico) (United States)
A self-governing territory of the United States located in the Caribbean Sea, Puerto Rico is an archipelago with 2,111,490 feddans in total land area. The island is known as a popular tourist destination.
It's about one-three-thousandth as big as Hawaii (Island).
In other words, 847.20 feddans is 0.00034114 times the size of Hawaii (Island), and the size of Hawaii (Island) is 2,931.350 times that amount.(a.k.a. Hawaii, a.k.a. The Big Island) (Hawaii)
The largest of the main Hawaiian Islands and the largest island in the United States, Hawaii measures 2,483,440 feddans in total area. It is known for its continuously erupting (for the past two decades, as of 2011) volcano, Kīlauea, and for the black sand beaches formed by the lava flow.
It's about 3,000 times as big as Fort Knox.
In other words, 847.20 feddans is 3,020 times the size of Fort Knox, and the size of Fort Knox is 0.000331 times that amount.(a.k.a. the United States Bullion Depository, a.k.a. "Gold Vault") (Kentucky)
The United States Bullion Depository, commonly referred to by the metonym "Fort Knox" (in spite of the fact that the Depository is not located on the Fort proper), measures 32.0 m (105 ft) by 36.9 m (121 ft), for a total area of about 0.2810 feddans. The Depository is most famous for housing the largest portion of the national gold reserve, but has also temporarily housed the original US Declaration of Independence, an original copy of the US Constitution, and other important documents, kept there for safe keeping during World War II.
It's about one-three-thousand-five-hundredth as big as Sitka.
In other words, 847.20 feddans is 0.000283347 times the size of Sitka, and the size of Sitka is 3,529.2420 times that amount.(a.k.a. the City and Borough of Sitka) (Alaska)
The second-largest city in both Alaska and the United States, Sitka measures 2,989,974 feddans in total area. The city is known as a major west coast seaport.
It's about one-three-thousand-five-hundredth as big as Glacier Bay National Park.
In other words, 847.20 feddans is 0.0002678 times the size of Glacier Bay National Park, and the size of Glacier Bay National Park is 3,734 times that amount.(a.k.a. Glacier Bay National Park and Preserve) (Hoonah-Angoon Census area, and Yakutat City and Borough, Alaska)
Containing nine tidewater glaciers, Glacier Bay National Park covers 3,164,000 feddans of which 2,561,000 feddans is designated a Wilderness Area. Glacier Bay is home to the 33.8 km (21 mi) long Margerie Glacier.
It's about one-four-thousandth as big as Connecticut.
In other words, 847.20 feddans is 0.000247886 times the size of Connecticut, and the size of Connecticut is 4,034.110 times that amount.(United States)
The "Constitution State" or the "Nutmeg State," Connecticut measures 3,417,700 feddans in total area. The northern boundary between Connecticut and Massachusetts is an otherwise straight line marked by the 1,547.310 feddans "Southwick Jog" — a notch of Massachusetts extending southward into Connecticut near Congamond Lakes.
It's about one-five-thousand-five-hundredth as big as Lake Ontario.
In other words, 847.20 feddans is 0.0001877 times the size of Lake Ontario, and the size of Lake Ontario is 5,328 times that amount.(a.k.a. Lac Ontario) (surface area)
The smallest of North America's Great Lakes (by surface area), Lake Ontario has a total area of 4,513,000 feddans. It borders the cities of Toronto, Ontario, Canada and Rochester, New York.