Finding the Fourth Proportional to 719,620.12, 993,079.38 and 397,330.84
Calculator
Solution
The fourth proportional to 719,620.12, 993,079.38 and 397,330.84 is: 548,318.55
Step by Step Solution
- Step 1: Write the proportion equation
719,620.12 : 993,079.38 = 397,330.84 : x - Step 2: Convert to fraction form
719,620.12/993,079.38 = 397,330.84/x - Step 3: Cross multiply
719,620.12x = 993,079.38 × 397,330.84 - Step 4: Simplify right side
719,620.12x = 394,581,064,242.08 - Step 5: Solve for x
x = 394,581,064,242.08/719,620.12 - Step 6: Final answer
x = 548,318.55
Related Problems
Find fourth proportional to 359,810.06, 496,539.69 and 198,665.42
Half scale
Find fourth proportional to 1,439,240.24, 1,986,158.76 and 794,661.68
Double scale
Find fourth proportional to 719,621.12, 993,080.76 and 397,331.84
Similar ratio
Find fourth proportional to 1,079,430.18, 1,489,619.07 and 595,996.26
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.