Finding the Fourth Proportional to 624,629.71, 861,990.95 and 338,149.12
Calculator
Solution
The fourth proportional to 624,629.71, 861,990.95 and 338,149.12 is: 466,646.84
Step by Step Solution
- Step 1: Write the proportion equation
624,629.71 : 861,990.95 = 338,149.12 : x - Step 2: Convert to fraction form
624,629.71/861,990.95 = 338,149.12/x - Step 3: Cross multiply
624,629.71x = 861,990.95 × 338,149.12 - Step 4: Simplify right side
624,629.71x = 291,481,481,190.46 - Step 5: Solve for x
x = 291,481,481,190.46/624,629.71 - Step 6: Final answer
x = 466,646.84
Related Problems
Find fourth proportional to 312,314.86, 430,995.48 and 169,074.56
Half scale
Find fourth proportional to 1,249,259.42, 1,723,981.90 and 676,298.24
Double scale
Find fourth proportional to 624,630.71, 861,992.33 and 338,150.12
Similar ratio
Find fourth proportional to 936,944.57, 1,292,986.43 and 507,223.68
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.