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Finding the Third Proportional to 605.81 and 1,269.56

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Solution

The third proportional to 605.81 and 1,269.56 is: 2,660.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.81 : 1,269.56 = 1,269.56 : x
  2. Step 2: Convert to fraction form
    605.81/1,269.56 = 1,269.56/x
  3. Step 3: Cross multiply
    605.81x = 1,269.56 × 1,269.56
  4. Step 4: Simplify right side
    605.81x = 1,611,788.94
  5. Step 5: Solve for x
    x = 1,611,788.94/605.81
  6. Step 6: Final answer
    x = 2,660.54

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.