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Finding the Fourth Proportional to 568.11, 847.45 and 558.72

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Solution

The fourth proportional to 568.11, 847.45 and 558.72 is: 833.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.11 : 847.45 = 558.72 : x
  2. Step 2: Convert to fraction form
    568.11/847.45 = 558.72/x
  3. Step 3: Cross multiply
    568.11x = 847.45 × 558.72
  4. Step 4: Simplify right side
    568.11x = 473,487.26
  5. Step 5: Solve for x
    x = 473,487.26/568.11
  6. Step 6: Final answer
    x = 833.44

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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.