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Finding the Fourth Proportional to 488,589.30, 732,920.40 and 173,005.20

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Solution

The fourth proportional to 488,589.30, 732,920.40 and 173,005.20 is: 259,520.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,589.30 : 732,920.40 = 173,005.20 : x
  2. Step 2: Convert to fraction form
    488,589.30/732,920.40 = 173,005.20/x
  3. Step 3: Cross multiply
    488,589.30x = 732,920.40 × 173,005.20
  4. Step 4: Simplify right side
    488,589.30x = 126,799,040,386.08
  5. Step 5: Solve for x
    x = 126,799,040,386.08/488,589.30
  6. Step 6: Final answer
    x = 259,520.71

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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.