Home / 428,705.20-591,584.34-237,711.52

Finding the Fourth Proportional to 428,705.20, 591,584.34 and 237,711.52

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Solution

The fourth proportional to 428,705.20, 591,584.34 and 237,711.52 is: 328,025.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,705.20 : 591,584.34 = 237,711.52 : x
  2. Step 2: Convert to fraction form
    428,705.20/591,584.34 = 237,711.52/x
  3. Step 3: Cross multiply
    428,705.20x = 591,584.34 × 237,711.52
  4. Step 4: Simplify right side
    428,705.20x = 140,626,412,669.60
  5. Step 5: Solve for x
    x = 140,626,412,669.60/428,705.20
  6. Step 6: Final answer
    x = 328,025.91

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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.