Home / 1,399,103.11-2,098,419.91-388,327.76

Finding the Fourth Proportional to 1,399,103.11, 2,098,419.91 and 388,327.76

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Solution

The fourth proportional to 1,399,103.11, 2,098,419.91 and 388,327.76 is: 582,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,103.11 : 2,098,419.91 = 388,327.76 : x
  2. Step 2: Convert to fraction form
    1,399,103.11/2,098,419.91 = 388,327.76/x
  3. Step 3: Cross multiply
    1,399,103.11x = 2,098,419.91 × 388,327.76
  4. Step 4: Simplify right side
    1,399,103.11x = 814,874,699,595.86
  5. Step 5: Solve for x
    x = 814,874,699,595.86/1,399,103.11
  6. Step 6: Final answer
    x = 582,426.48

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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.