Home / 1,251,685.62-1,876,778.64-398,388.69

Finding the Fourth Proportional to 1,251,685.62, 1,876,778.64 and 398,388.69

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Solution

The fourth proportional to 1,251,685.62, 1,876,778.64 and 398,388.69 is: 597,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,685.62 : 1,876,778.64 = 398,388.69 : x
  2. Step 2: Convert to fraction form
    1,251,685.62/1,876,778.64 = 398,388.69/x
  3. Step 3: Cross multiply
    1,251,685.62x = 1,876,778.64 × 398,388.69
  4. Step 4: Simplify right side
    1,251,685.62x = 747,687,383,809.58
  5. Step 5: Solve for x
    x = 747,687,383,809.58/1,251,685.62
  6. Step 6: Final answer
    x = 597,344.39

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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.