Home / 992,649.38-1,488,372.72-445,441.43

Finding the Fourth Proportional to 992,649.38, 1,488,372.72 and 445,441.43

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Solution

The fourth proportional to 992,649.38, 1,488,372.72 and 445,441.43 is: 667,892.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,649.38 : 1,488,372.72 = 445,441.43 : x
  2. Step 2: Convert to fraction form
    992,649.38/1,488,372.72 = 445,441.43/x
  3. Step 3: Cross multiply
    992,649.38x = 1,488,372.72 × 445,441.43
  4. Step 4: Simplify right side
    992,649.38x = 662,982,865,327.93
  5. Step 5: Solve for x
    x = 662,982,865,327.93/992,649.38
  6. Step 6: Final answer
    x = 667,892.29

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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.