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Finding the Third Proportional to 579.66 and 1,249.80

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Solution

The third proportional to 579.66 and 1,249.80 is: 2,694.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.66 : 1,249.80 = 1,249.80 : x
  2. Step 2: Convert to fraction form
    579.66/1,249.80 = 1,249.80/x
  3. Step 3: Cross multiply
    579.66x = 1,249.80 × 1,249.80
  4. Step 4: Simplify right side
    579.66x = 1,562,011.76
  5. Step 5: Solve for x
    x = 1,562,011.76/579.66
  6. Step 6: Final answer
    x = 2,694.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.