Home / 428,521.96-591,366.30-234,947.92

Finding the Fourth Proportional to 428,521.96, 591,366.30 and 234,947.92

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Solution

The fourth proportional to 428,521.96, 591,366.30 and 234,947.92 is: 324,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,521.96 : 591,366.30 = 234,947.92 : x
  2. Step 2: Convert to fraction form
    428,521.96/591,366.30 = 234,947.92/x
  3. Step 3: Cross multiply
    428,521.96x = 591,366.30 × 234,947.92
  4. Step 4: Simplify right side
    428,521.96x = 138,940,282,143.10
  5. Step 5: Solve for x
    x = 138,940,282,143.10/428,521.96
  6. Step 6: Final answer
    x = 324,231.42

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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.