Home / 987,293.20-1,480,646.28-418,665.92

Finding the Fourth Proportional to 987,293.20, 1,480,646.28 and 418,665.92

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Solution

The fourth proportional to 987,293.20, 1,480,646.28 and 418,665.92 is: 627,874.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,293.20 : 1,480,646.28 = 418,665.92 : x
  2. Step 2: Convert to fraction form
    987,293.20/1,480,646.28 = 418,665.92/x
  3. Step 3: Cross multiply
    987,293.20x = 1,480,646.28 × 418,665.92
  4. Step 4: Simplify right side
    987,293.20x = 619,896,137,010.78
  5. Step 5: Solve for x
    x = 619,896,137,010.78/987,293.20
  6. Step 6: Final answer
    x = 627,874.41

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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.