Home / 487,532.20-731,298.30-328,099.90

Finding the Fourth Proportional to 487,532.20, 731,298.30 and 328,099.90

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Solution

The fourth proportional to 487,532.20, 731,298.30 and 328,099.90 is: 492,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,532.20 : 731,298.30 = 328,099.90 : x
  2. Step 2: Convert to fraction form
    487,532.20/731,298.30 = 328,099.90/x
  3. Step 3: Cross multiply
    487,532.20x = 731,298.30 × 328,099.90
  4. Step 4: Simplify right side
    487,532.20x = 239,938,899,100.17
  5. Step 5: Solve for x
    x = 239,938,899,100.17/487,532.20
  6. Step 6: Final answer
    x = 492,149.85

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Similar ratio
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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.