Home / 1,251,213.67-1,873,789.69-865,882.78

Finding the Fourth Proportional to 1,251,213.67, 1,873,789.69 and 865,882.78

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Solution

The fourth proportional to 1,251,213.67, 1,873,789.69 and 865,882.78 is: 1,296,726.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,213.67 : 1,873,789.69 = 865,882.78 : x
  2. Step 2: Convert to fraction form
    1,251,213.67/1,873,789.69 = 865,882.78/x
  3. Step 3: Cross multiply
    1,251,213.67x = 1,873,789.69 × 865,882.78
  4. Step 4: Simplify right side
    1,251,213.67x = 1,622,482,225,912.54
  5. Step 5: Solve for x
    x = 1,622,482,225,912.54/1,251,213.67
  6. Step 6: Final answer
    x = 1,296,726.75

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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.