Finding the Fourth Proportional to 415,716.88, 573,306.64 and 272,424.88
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Solution
The fourth proportional to 415,716.88, 573,306.64 and 272,424.88 is: 375,695.58
Step by Step Solution
- Step 1: Write the proportion equation
415,716.88 : 573,306.64 = 272,424.88 : x - Step 2: Convert to fraction form
415,716.88/573,306.64 = 272,424.88/x - Step 3: Cross multiply
415,716.88x = 573,306.64 × 272,424.88 - Step 4: Simplify right side
415,716.88x = 156,182,992,605.20 - Step 5: Solve for x
x = 156,182,992,605.20/415,716.88 - Step 6: Final answer
x = 375,695.58
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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.