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Finding the Fourth Proportional to 521,567.28, 782,472.96 and 161,719.20

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Solution

The fourth proportional to 521,567.28, 782,472.96 and 161,719.20 is: 242,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,567.28 : 782,472.96 = 161,719.20 : x
  2. Step 2: Convert to fraction form
    521,567.28/782,472.96 = 161,719.20/x
  3. Step 3: Cross multiply
    521,567.28x = 782,472.96 × 161,719.20
  4. Step 4: Simplify right side
    521,567.28x = 126,540,901,112.83
  5. Step 5: Solve for x
    x = 126,540,901,112.83/521,567.28
  6. Step 6: Final answer
    x = 242,616.64

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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.