Home / 428,728.20-591,616.08-237,734.52

Finding the Fourth Proportional to 428,728.20, 591,616.08 and 237,734.52

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Solution

The fourth proportional to 428,728.20, 591,616.08 and 237,734.52 is: 328,057.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,728.20 : 591,616.08 = 237,734.52 : x
  2. Step 2: Convert to fraction form
    428,728.20/591,616.08 = 237,734.52/x
  3. Step 3: Cross multiply
    428,728.20x = 591,616.08 × 237,734.52
  4. Step 4: Simplify right side
    428,728.20x = 140,647,564,803.08
  5. Step 5: Solve for x
    x = 140,647,564,803.08/428,728.20
  6. Step 6: Final answer
    x = 328,057.65

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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.