Home / 1,279,614.52-1,919,836.32-381,063.70

Finding the Fourth Proportional to 1,279,614.52, 1,919,836.32 and 381,063.70

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Solution

The fourth proportional to 1,279,614.52, 1,919,836.32 and 381,063.70 is: 571,719.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,614.52 : 1,919,836.32 = 381,063.70 : x
  2. Step 2: Convert to fraction form
    1,279,614.52/1,919,836.32 = 381,063.70/x
  3. Step 3: Cross multiply
    1,279,614.52x = 1,919,836.32 × 381,063.70
  4. Step 4: Simplify right side
    1,279,614.52x = 731,579,931,493.58
  5. Step 5: Solve for x
    x = 731,579,931,493.58/1,279,614.52
  6. Step 6: Final answer
    x = 571,719.00

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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.