Home / 1,279,635.52-1,919,867.84-381,084.72

Finding the Fourth Proportional to 1,279,635.52, 1,919,867.84 and 381,084.72

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Solution

The fourth proportional to 1,279,635.52, 1,919,867.84 and 381,084.72 is: 571,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,635.52 : 1,919,867.84 = 381,084.72 : x
  2. Step 2: Convert to fraction form
    1,279,635.52/1,919,867.84 = 381,084.72/x
  3. Step 3: Cross multiply
    1,279,635.52x = 1,919,867.84 × 381,084.72
  4. Step 4: Simplify right side
    1,279,635.52x = 731,632,298,243.41
  5. Step 5: Solve for x
    x = 731,632,298,243.41/1,279,635.52
  6. Step 6: Final answer
    x = 571,750.54

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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.