Finding the Fourth Proportional to 439,781.80, 659,672.70 and 413,537.80
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Solution
The fourth proportional to 439,781.80, 659,672.70 and 413,537.80 is: 620,306.70
Step by Step Solution
- Step 1: Write the proportion equation
439,781.80 : 659,672.70 = 413,537.80 : x - Step 2: Convert to fraction form
439,781.80/659,672.70 = 413,537.80/x - Step 3: Cross multiply
439,781.80x = 659,672.70 × 413,537.80 - Step 4: Simplify right side
439,781.80x = 272,799,597,078.06 - Step 5: Solve for x
x = 272,799,597,078.06/439,781.80 - Step 6: Final answer
x = 620,306.70
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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.