Finding the Fourth Proportional to 676,642.74, 1,014,646.24 and 392,414.05
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Solution
The fourth proportional to 676,642.74, 1,014,646.24 and 392,414.05 is: 588,436.73
Step by Step Solution
- Step 1: Write the proportion equation
676,642.74 : 1,014,646.24 = 392,414.05 : x - Step 2: Convert to fraction form
676,642.74/1,014,646.24 = 392,414.05/x - Step 3: Cross multiply
676,642.74x = 1,014,646.24 × 392,414.05 - Step 4: Simplify right side
676,642.74x = 398,161,440,355.67 - Step 5: Solve for x
x = 398,161,440,355.67/676,642.74 - Step 6: Final answer
x = 588,436.73
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.