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Finding the Fourth Proportional to 576,451.28, 862,905.24 and 491,420.72

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Solution

The fourth proportional to 576,451.28, 862,905.24 and 491,420.72 is: 735,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,451.28 : 862,905.24 = 491,420.72 : x
  2. Step 2: Convert to fraction form
    576,451.28/862,905.24 = 491,420.72/x
  3. Step 3: Cross multiply
    576,451.28x = 862,905.24 × 491,420.72
  4. Step 4: Simplify right side
    576,451.28x = 424,049,514,332.57
  5. Step 5: Solve for x
    x = 424,049,514,332.57/576,451.28
  6. Step 6: Final answer
    x = 735,620.74

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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.