Home / 1,338,785.91-2,008,243.45-440,207.75

Finding the Fourth Proportional to 1,338,785.91, 2,008,243.45 and 440,207.75

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Solution

The fourth proportional to 1,338,785.91, 2,008,243.45 and 440,207.75 is: 660,332.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,785.91 : 2,008,243.45 = 440,207.75 : x
  2. Step 2: Convert to fraction form
    1,338,785.91/2,008,243.45 = 440,207.75/x
  3. Step 3: Cross multiply
    1,338,785.91x = 2,008,243.45 × 440,207.75
  4. Step 4: Simplify right side
    1,338,785.91x = 884,044,337,869.15
  5. Step 5: Solve for x
    x = 884,044,337,869.15/1,338,785.91
  6. Step 6: Final answer
    x = 660,332.87

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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.