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Finding the Third Proportional to 676.75 and 1,126.63

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Solution

The third proportional to 676.75 and 1,126.63 is: 1,875.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.75 : 1,126.63 = 1,126.63 : x
  2. Step 2: Convert to fraction form
    676.75/1,126.63 = 1,126.63/x
  3. Step 3: Cross multiply
    676.75x = 1,126.63 × 1,126.63
  4. Step 4: Simplify right side
    676.75x = 1,269,283.89
  5. Step 5: Solve for x
    x = 1,269,283.89/676.75
  6. Step 6: Final answer
    x = 1,875.56

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.