Home / 428,789.10-591,765.30-237,864

Finding the Fourth Proportional to 428,789.10, 591,765.30 and 237,864

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Solution

The fourth proportional to 428,789.10, 591,765.30 and 237,864 is: 328,272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,789.10 : 591,765.30 = 237,864 : x
  2. Step 2: Convert to fraction form
    428,789.10/591,765.30 = 237,864/x
  3. Step 3: Cross multiply
    428,789.10x = 591,765.30 × 237,864
  4. Step 4: Simplify right side
    428,789.10x = 140,759,661,319.20
  5. Step 5: Solve for x
    x = 140,759,661,319.20/428,789.10
  6. Step 6: Final answer
    x = 328,272.48

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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.