Home / 1,098,439.05-1,647,921.62-458,386.74

Finding the Fourth Proportional to 1,098,439.05, 1,647,921.62 and 458,386.74

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Solution

The fourth proportional to 1,098,439.05, 1,647,921.62 and 458,386.74 is: 687,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,439.05 : 1,647,921.62 = 458,386.74 : x
  2. Step 2: Convert to fraction form
    1,098,439.05/1,647,921.62 = 458,386.74/x
  3. Step 3: Cross multiply
    1,098,439.05x = 1,647,921.62 × 458,386.74
  4. Step 4: Simplify right side
    1,098,439.05x = 755,385,419,167.32
  5. Step 5: Solve for x
    x = 755,385,419,167.32/1,098,439.05
  6. Step 6: Final answer
    x = 687,689.88

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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.