Finding the Fourth Proportional to 717,073.13, 989,541.78 and 394,785.65
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Solution
The fourth proportional to 717,073.13, 989,541.78 and 394,785.65 is: 544,793.66
Step by Step Solution
- Step 1: Write the proportion equation
717,073.13 : 989,541.78 = 394,785.65 : x - Step 2: Convert to fraction form
717,073.13/989,541.78 = 394,785.65/x - Step 3: Cross multiply
717,073.13x = 989,541.78 × 394,785.65 - Step 4: Simplify right side
717,073.13x = 390,656,894,819.46 - Step 5: Solve for x
x = 390,656,894,819.46/717,073.13 - Step 6: Final answer
x = 544,793.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.