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Finding the Fourth Proportional to 576,540.64, 861,025.70 and 491,393.44

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Solution

The fourth proportional to 576,540.64, 861,025.70 and 491,393.44 is: 733,863.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,540.64 : 861,025.70 = 491,393.44 : x
  2. Step 2: Convert to fraction form
    576,540.64/861,025.70 = 491,393.44/x
  3. Step 3: Cross multiply
    576,540.64x = 861,025.70 × 491,393.44
  4. Step 4: Simplify right side
    576,540.64x = 423,102,380,651.41
  5. Step 5: Solve for x
    x = 423,102,380,651.41/576,540.64
  6. Step 6: Final answer
    x = 733,863.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.