Fort Worth, Texas is 2.7 times larger than Portland, Oregon.
Area: 1,011 km2 calculated
Population: 777,992 (2012)
Fort Worth is the 17th-largest city in the United States of America and the fifth-largest city in the state of Texas. Wikipedia
Area: 376 km2 calculated
Population: 603,106 (2012)
Portland is the largest city by population in the U.S. state of Oregon, near the confluence of the Willamette and Columbia rivers. Wikipedia