Finding the Fourth Proportional to 657,876.18, 907,876.56 and 385,948.71
Calculator
Solution
The fourth proportional to 657,876.18, 907,876.56 and 385,948.71 is: 532,613.58
Step by Step Solution
- Step 1: Write the proportion equation
657,876.18 : 907,876.56 = 385,948.71 : x - Step 2: Convert to fraction form
657,876.18/907,876.56 = 385,948.71/x - Step 3: Cross multiply
657,876.18x = 907,876.56 × 385,948.71 - Step 4: Simplify right side
657,876.18x = 350,393,787,171.24 - Step 5: Solve for x
x = 350,393,787,171.24/657,876.18 - Step 6: Final answer
x = 532,613.58
Related Problems
Find fourth proportional to 328,938.09, 453,938.28 and 192,974.36
Half scale
Find fourth proportional to 1,315,752.36, 1,815,753.12 and 771,897.42
Double scale
Find fourth proportional to 657,877.18, 907,877.94 and 385,949.71
Similar ratio
Find fourth proportional to 986,814.27, 1,361,814.84 and 578,923.07
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.