Home / 428,713.92-591,648.66-237,723.12

Finding the Fourth Proportional to 428,713.92, 591,648.66 and 237,723.12

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Solution

The fourth proportional to 428,713.92, 591,648.66 and 237,723.12 is: 328,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,713.92 : 591,648.66 = 237,723.12 : x
  2. Step 2: Convert to fraction form
    428,713.92/591,648.66 = 237,723.12/x
  3. Step 3: Cross multiply
    428,713.92x = 591,648.66 × 237,723.12
  4. Step 4: Simplify right side
    428,713.92x = 140,648,565,399.02
  5. Step 5: Solve for x
    x = 140,648,565,399.02/428,713.92
  6. Step 6: Final answer
    x = 328,070.91

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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.