Home / 423,745.28-635,077.32-198,609.04

Finding the Fourth Proportional to 423,745.28, 635,077.32 and 198,609.04

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Solution

The fourth proportional to 423,745.28, 635,077.32 and 198,609.04 is: 297,660.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,745.28 : 635,077.32 = 198,609.04 : x
  2. Step 2: Convert to fraction form
    423,745.28/635,077.32 = 198,609.04/x
  3. Step 3: Cross multiply
    423,745.28x = 635,077.32 × 198,609.04
  4. Step 4: Simplify right side
    423,745.28x = 126,132,096,850.97
  5. Step 5: Solve for x
    x = 126,132,096,850.97/423,745.28
  6. Step 6: Final answer
    x = 297,660.18

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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.