Home / 1,440,463.38-1,982,102.50-1,396,635.90

Finding the Fourth Proportional to 1,440,463.38, 1,982,102.50 and 1,396,635.90

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Solution

The fourth proportional to 1,440,463.38, 1,982,102.50 and 1,396,635.90 is: 1,921,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,463.38 : 1,982,102.50 = 1,396,635.90 : x
  2. Step 2: Convert to fraction form
    1,440,463.38/1,982,102.50 = 1,396,635.90/x
  3. Step 3: Cross multiply
    1,440,463.38x = 1,982,102.50 × 1,396,635.90
  4. Step 4: Simplify right side
    1,440,463.38x = 2,768,275,508,979.75
  5. Step 5: Solve for x
    x = 2,768,275,508,979.75/1,440,463.38
  6. Step 6: Final answer
    x = 1,921,795.13

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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.