Home / 498,911.10-748,463.85-199,340.70

Finding the Fourth Proportional to 498,911.10, 748,463.85 and 199,340.70

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Solution

The fourth proportional to 498,911.10, 748,463.85 and 199,340.70 is: 299,049.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,911.10 : 748,463.85 = 199,340.70 : x
  2. Step 2: Convert to fraction form
    498,911.10/748,463.85 = 199,340.70/x
  3. Step 3: Cross multiply
    498,911.10x = 748,463.85 × 199,340.70
  4. Step 4: Simplify right side
    498,911.10x = 149,199,307,783.70
  5. Step 5: Solve for x
    x = 149,199,307,783.70/498,911.10
  6. Step 6: Final answer
    x = 299,049.89

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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.