Home / 488,257.29-731,511.13-172,512.81

Finding the Fourth Proportional to 488,257.29, 731,511.13 and 172,512.81

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Solution

The fourth proportional to 488,257.29, 731,511.13 and 172,512.81 is: 258,460.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,257.29 : 731,511.13 = 172,512.81 : x
  2. Step 2: Convert to fraction form
    488,257.29/731,511.13 = 172,512.81/x
  3. Step 3: Cross multiply
    488,257.29x = 731,511.13 × 172,512.81
  4. Step 4: Simplify right side
    488,257.29x = 126,195,040,582.58
  5. Step 5: Solve for x
    x = 126,195,040,582.58/488,257.29
  6. Step 6: Final answer
    x = 258,460.13

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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.