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Finding the Fourth Proportional to 488,658.59, 732,997.61 and 321,246.71

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Solution

The fourth proportional to 488,658.59, 732,997.61 and 321,246.71 is: 481,876.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,658.59 : 732,997.61 = 321,246.71 : x
  2. Step 2: Convert to fraction form
    488,658.59/732,997.61 = 321,246.71/x
  3. Step 3: Cross multiply
    488,658.59x = 732,997.61 × 321,246.71
  4. Step 4: Simplify right side
    488,658.59x = 235,473,070,650.36
  5. Step 5: Solve for x
    x = 235,473,070,650.36/488,658.59
  6. Step 6: Final answer
    x = 481,876.46

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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.