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Finding the Fourth Proportional to 578.92, 796.26 and 540.04

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Solution

The fourth proportional to 578.92, 796.26 and 540.04 is: 742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    578.92 : 796.26 = 540.04 : x
  2. Step 2: Convert to fraction form
    578.92/796.26 = 540.04/x
  3. Step 3: Cross multiply
    578.92x = 796.26 × 540.04
  4. Step 4: Simplify right side
    578.92x = 430,012.25
  5. Step 5: Solve for x
    x = 430,012.25/578.92
  6. Step 6: Final answer
    x = 742.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.