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Finding the Fourth Proportional to 481,438.80, 722,158.20 and 332,139.60

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Solution

The fourth proportional to 481,438.80, 722,158.20 and 332,139.60 is: 498,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,438.80 : 722,158.20 = 332,139.60 : x
  2. Step 2: Convert to fraction form
    481,438.80/722,158.20 = 332,139.60/x
  3. Step 3: Cross multiply
    481,438.80x = 722,158.20 × 332,139.60
  4. Step 4: Simplify right side
    481,438.80x = 239,857,335,684.72
  5. Step 5: Solve for x
    x = 239,857,335,684.72/481,438.80
  6. Step 6: Final answer
    x = 498,209.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.