Home / 1,438,863.30-2,158,294.95-1,377,432.90

Finding the Fourth Proportional to 1,438,863.30, 2,158,294.95 and 1,377,432.90

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Solution

The fourth proportional to 1,438,863.30, 2,158,294.95 and 1,377,432.90 is: 2,066,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,863.30 : 2,158,294.95 = 1,377,432.90 : x
  2. Step 2: Convert to fraction form
    1,438,863.30/2,158,294.95 = 1,377,432.90/x
  3. Step 3: Cross multiply
    1,438,863.30x = 2,158,294.95 × 1,377,432.90
  4. Step 4: Simplify right side
    1,438,863.30x = 2,972,906,472,033.86
  5. Step 5: Solve for x
    x = 2,972,906,472,033.86/1,438,863.30
  6. Step 6: Final answer
    x = 2,066,149.35

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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.