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Finding the Fourth Proportional to 492,099.90, 738,149.85 and 487,952.70

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Solution

The fourth proportional to 492,099.90, 738,149.85 and 487,952.70 is: 731,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,099.90 : 738,149.85 = 487,952.70 : x
  2. Step 2: Convert to fraction form
    492,099.90/738,149.85 = 487,952.70/x
  3. Step 3: Cross multiply
    492,099.90x = 738,149.85 × 487,952.70
  4. Step 4: Simplify right side
    492,099.90x = 360,182,212,312.10
  5. Step 5: Solve for x
    x = 360,182,212,312.10/492,099.90
  6. Step 6: Final answer
    x = 731,929.05

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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.