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Finding the Third Proportional to 617.06 and 1,320.56

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Solution

The third proportional to 617.06 and 1,320.56 is: 2,826.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.06 : 1,320.56 = 1,320.56 : x
  2. Step 2: Convert to fraction form
    617.06/1,320.56 = 1,320.56/x
  3. Step 3: Cross multiply
    617.06x = 1,320.56 × 1,320.56
  4. Step 4: Simplify right side
    617.06x = 1,743,885.32
  5. Step 5: Solve for x
    x = 1,743,885.32/617.06
  6. Step 6: Final answer
    x = 2,826.11

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.