Finding the Fourth Proportional to 461,691.20, 637,025.64 and 280,398.08
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Solution
The fourth proportional to 461,691.20, 637,025.64 and 280,398.08 is: 386,883.63
Step by Step Solution
- Step 1: Write the proportion equation
461,691.20 : 637,025.64 = 280,398.08 : x - Step 2: Convert to fraction form
461,691.20/637,025.64 = 280,398.08/x - Step 3: Cross multiply
461,691.20x = 637,025.64 × 280,398.08 - Step 4: Simplify right side
461,691.20x = 178,620,766,366.77 - Step 5: Solve for x
x = 178,620,766,366.77/461,691.20 - Step 6: Final answer
x = 386,883.63
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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.