Home / 428,789.60-591,765.99-237,864.50

Finding the Fourth Proportional to 428,789.60, 591,765.99 and 237,864.50

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Solution

The fourth proportional to 428,789.60, 591,765.99 and 237,864.50 is: 328,273.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,789.60 : 591,765.99 = 237,864.50 : x
  2. Step 2: Convert to fraction form
    428,789.60/591,765.99 = 237,864.50/x
  3. Step 3: Cross multiply
    428,789.60x = 591,765.99 × 237,864.50
  4. Step 4: Simplify right side
    428,789.60x = 140,760,121,328.36
  5. Step 5: Solve for x
    x = 140,760,121,328.36/428,789.60
  6. Step 6: Final answer
    x = 328,273.17

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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.