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Finding the Fourth Proportional to 579.03, 799.11 and 392.27

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Solution

The fourth proportional to 579.03, 799.11 and 392.27 is: 541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.03 : 799.11 = 392.27 : x
  2. Step 2: Convert to fraction form
    579.03/799.11 = 392.27/x
  3. Step 3: Cross multiply
    579.03x = 799.11 × 392.27
  4. Step 4: Simplify right side
    579.03x = 313,462.88
  5. Step 5: Solve for x
    x = 313,462.88/579.03
  6. Step 6: Final answer
    x = 541.36

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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.