Home / 498,890.60-748,433.10-199,320.20

Finding the Fourth Proportional to 498,890.60, 748,433.10 and 199,320.20

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Solution

The fourth proportional to 498,890.60, 748,433.10 and 199,320.20 is: 299,019.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,890.60 : 748,433.10 = 199,320.20 : x
  2. Step 2: Convert to fraction form
    498,890.60/748,433.10 = 199,320.20/x
  3. Step 3: Cross multiply
    498,890.60x = 748,433.10 × 199,320.20
  4. Step 4: Simplify right side
    498,890.60x = 149,177,835,178.62
  5. Step 5: Solve for x
    x = 149,177,835,178.62/498,890.60
  6. Step 6: Final answer
    x = 299,019.13

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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.