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Finding the Fourth Proportional to 576.27, 866.09 and 479.41

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Solution

The fourth proportional to 576.27, 866.09 and 479.41 is: 720.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.27 : 866.09 = 479.41 : x
  2. Step 2: Convert to fraction form
    576.27/866.09 = 479.41/x
  3. Step 3: Cross multiply
    576.27x = 866.09 × 479.41
  4. Step 4: Simplify right side
    576.27x = 415,211.24
  5. Step 5: Solve for x
    x = 415,211.24/576.27
  6. Step 6: Final answer
    x = 720.52

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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.