Finding the Fourth Proportional to 391,344.86, 587,214.26 and 291,705.14
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Solution
The fourth proportional to 391,344.86, 587,214.26 and 291,705.14 is: 437,704.53
Step by Step Solution
- Step 1: Write the proportion equation
391,344.86 : 587,214.26 = 291,705.14 : x - Step 2: Convert to fraction form
391,344.86/587,214.26 = 291,705.14/x - Step 3: Cross multiply
391,344.86x = 587,214.26 × 291,705.14 - Step 4: Simplify right side
391,344.86x = 171,293,417,923.30 - Step 5: Solve for x
x = 171,293,417,923.30/391,344.86 - Step 6: Final answer
x = 437,704.53
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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.