Home / 1,440,462.38-1,982,101.13-1,396,634.90

Finding the Fourth Proportional to 1,440,462.38, 1,982,101.13 and 1,396,634.90

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Solution

The fourth proportional to 1,440,462.38, 1,982,101.13 and 1,396,634.90 is: 1,921,793.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,462.38 : 1,982,101.13 = 1,396,634.90 : x
  2. Step 2: Convert to fraction form
    1,440,462.38/1,982,101.13 = 1,396,634.90/x
  3. Step 3: Cross multiply
    1,440,462.38x = 1,982,101.13 × 1,396,634.90
  4. Step 4: Simplify right side
    1,440,462.38x = 2,768,271,596,593.76
  5. Step 5: Solve for x
    x = 2,768,271,596,593.76/1,440,462.38
  6. Step 6: Final answer
    x = 1,921,793.76

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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.