Home / 812,377.38-1,121,115.81-449,801.27

Finding the Fourth Proportional to 812,377.38, 1,121,115.81 and 449,801.27

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Solution

The fourth proportional to 812,377.38, 1,121,115.81 and 449,801.27 is: 620,745.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,377.38 : 1,121,115.81 = 449,801.27 : x
  2. Step 2: Convert to fraction form
    812,377.38/1,121,115.81 = 449,801.27/x
  3. Step 3: Cross multiply
    812,377.38x = 1,121,115.81 × 449,801.27
  4. Step 4: Simplify right side
    812,377.38x = 504,279,309,549.50
  5. Step 5: Solve for x
    x = 504,279,309,549.50/812,377.38
  6. Step 6: Final answer
    x = 620,745.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.