Home / 1,251,789.60-1,727,342.64-768,375.12

Finding the Fourth Proportional to 1,251,789.60, 1,727,342.64 and 768,375.12

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Solution

The fourth proportional to 1,251,789.60, 1,727,342.64 and 768,375.12 is: 1,060,279.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,789.60 : 1,727,342.64 = 768,375.12 : x
  2. Step 2: Convert to fraction form
    1,251,789.60/1,727,342.64 = 768,375.12/x
  3. Step 3: Cross multiply
    1,251,789.60x = 1,727,342.64 × 768,375.12
  4. Step 4: Simplify right side
    1,251,789.60x = 1,327,247,108,291.12
  5. Step 5: Solve for x
    x = 1,327,247,108,291.12/1,251,789.60
  6. Step 6: Final answer
    x = 1,060,279.71

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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.