Home / 428,761.38-591,648.03-247,531.80

Finding the Fourth Proportional to 428,761.38, 591,648.03 and 247,531.80

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Solution

The fourth proportional to 428,761.38, 591,648.03 and 247,531.80 is: 341,569.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,761.38 : 591,648.03 = 247,531.80 : x
  2. Step 2: Convert to fraction form
    428,761.38/591,648.03 = 247,531.80/x
  3. Step 3: Cross multiply
    428,761.38x = 591,648.03 × 247,531.80
  4. Step 4: Simplify right side
    428,761.38x = 146,451,701,832.35
  5. Step 5: Solve for x
    x = 146,451,701,832.35/428,761.38
  6. Step 6: Final answer
    x = 341,569.25

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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.