Finding the Fourth Proportional to 478,374.92, 717,578.87 and 253,431.03
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Solution
The fourth proportional to 478,374.92, 717,578.87 and 253,431.03 is: 380,155.28
Step by Step Solution
- Step 1: Write the proportion equation
478,374.92 : 717,578.87 = 253,431.03 : x - Step 2: Convert to fraction form
478,374.92/717,578.87 = 253,431.03/x - Step 3: Cross multiply
478,374.92x = 717,578.87 × 253,431.03 - Step 4: Simplify right side
478,374.92x = 181,856,750,863.18 - Step 5: Solve for x
x = 181,856,750,863.18/478,374.92 - Step 6: Final answer
x = 380,155.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.