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Finding the Third Proportional to 471 and 579

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Solution

The third proportional to 471 and 579 is: 711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    471 : 579 = 579 : x
  2. Step 2: Convert to fraction form
    471/579 = 579/x
  3. Step 3: Cross multiply
    471x = 579 × 579
  4. Step 4: Simplify right side
    471x = 335,241
  5. Step 5: Solve for x
    x = 335,241/471
  6. Step 6: Final answer
    x = 711.76

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Why These Related Problems?

These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.