Home / 487,486.26-731,244.60-132,507.81

Finding the Fourth Proportional to 487,486.26, 731,244.60 and 132,507.81

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Solution

The fourth proportional to 487,486.26, 731,244.60 and 132,507.81 is: 198,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,486.26 : 731,244.60 = 132,507.81 : x
  2. Step 2: Convert to fraction form
    487,486.26/731,244.60 = 132,507.81/x
  3. Step 3: Cross multiply
    487,486.26x = 731,244.60 × 132,507.81
  4. Step 4: Simplify right side
    487,486.26x = 96,895,620,520.33
  5. Step 5: Solve for x
    x = 96,895,620,520.33/487,486.26
  6. Step 6: Final answer
    x = 198,765.85

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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.