Home / 498,316.25-687,460.71-304,732.43

Finding the Fourth Proportional to 498,316.25, 687,460.71 and 304,732.43

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Solution

The fourth proportional to 498,316.25, 687,460.71 and 304,732.43 is: 420,398.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,316.25 : 687,460.71 = 304,732.43 : x
  2. Step 2: Convert to fraction form
    498,316.25/687,460.71 = 304,732.43/x
  3. Step 3: Cross multiply
    498,316.25x = 687,460.71 × 304,732.43
  4. Step 4: Simplify right side
    498,316.25x = 209,491,569,250.52
  5. Step 5: Solve for x
    x = 209,491,569,250.52/498,316.25
  6. Step 6: Final answer
    x = 420,398.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.