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Finding the Third Proportional to 576.94 and 817.22

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Solution

The third proportional to 576.94 and 817.22 is: 1,157.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.94 : 817.22 = 817.22 : x
  2. Step 2: Convert to fraction form
    576.94/817.22 = 817.22/x
  3. Step 3: Cross multiply
    576.94x = 817.22 × 817.22
  4. Step 4: Simplify right side
    576.94x = 667,846.49
  5. Step 5: Solve for x
    x = 667,846.49/576.94
  6. Step 6: Final answer
    x = 1,157.57

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.