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Finding the Fourth Proportional to 488,833.60, 732,375.60 and 418,849.60

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Solution

The fourth proportional to 488,833.60, 732,375.60 and 418,849.60 is: 627,524.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,833.60 : 732,375.60 = 418,849.60 : x
  2. Step 2: Convert to fraction form
    488,833.60/732,375.60 = 418,849.60/x
  3. Step 3: Cross multiply
    488,833.60x = 732,375.60 × 418,849.60
  4. Step 4: Simplify right side
    488,833.60x = 306,755,227,109.76
  5. Step 5: Solve for x
    x = 306,755,227,109.76/488,833.60
  6. Step 6: Final answer
    x = 627,524.84

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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.