Finding the Fourth Proportional to 1,288,059.69, 1,932,229.66 and 478,349.13
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Solution
The fourth proportional to 1,288,059.69, 1,932,229.66 and 478,349.13 is: 717,575.73
Step by Step Solution
- Step 1: Write the proportion equation
1,288,059.69 : 1,932,229.66 = 478,349.13 : x - Step 2: Convert to fraction form
1,288,059.69/1,932,229.66 = 478,349.13/x - Step 3: Cross multiply
1,288,059.69x = 1,932,229.66 × 478,349.13 - Step 4: Simplify right side
1,288,059.69x = 924,280,376,821.20 - Step 5: Solve for x
x = 924,280,376,821.20/1,288,059.69 - Step 6: Final answer
x = 717,575.73
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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.