Home / 428,789.12-591,764.46-237,864.20

Finding the Fourth Proportional to 428,789.12, 591,764.46 and 237,864.20

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Solution

The fourth proportional to 428,789.12, 591,764.46 and 237,864.20 is: 328,272.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,789.12 : 591,764.46 = 237,864.20 : x
  2. Step 2: Convert to fraction form
    428,789.12/591,764.46 = 237,864.20/x
  3. Step 3: Cross multiply
    428,789.12x = 591,764.46 × 237,864.20
  4. Step 4: Simplify right side
    428,789.12x = 140,759,579,866.33
  5. Step 5: Solve for x
    x = 140,759,579,866.33/428,789.12
  6. Step 6: Final answer
    x = 328,272.27

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1.5x scale

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.