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Finding the Fourth Proportional to 488,411.40, 732,519.90 and 235,691.40

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Solution

The fourth proportional to 488,411.40, 732,519.90 and 235,691.40 is: 353,490.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,411.40 : 732,519.90 = 235,691.40 : x
  2. Step 2: Convert to fraction form
    488,411.40/732,519.90 = 235,691.40/x
  3. Step 3: Cross multiply
    488,411.40x = 732,519.90 × 235,691.40
  4. Step 4: Simplify right side
    488,411.40x = 172,648,640,758.86
  5. Step 5: Solve for x
    x = 172,648,640,758.86/488,411.40
  6. Step 6: Final answer
    x = 353,490.19

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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.