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Finding the Third Proportional to 756,760 and 1,128,580

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Solution

The third proportional to 756,760 and 1,128,580 is: 1,683,086.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,760 : 1,128,580 = 1,128,580 : x
  2. Step 2: Convert to fraction form
    756,760/1,128,580 = 1,128,580/x
  3. Step 3: Cross multiply
    756,760x = 1,128,580 × 1,128,580
  4. Step 4: Simplify right side
    756,760x = 1,273,692,816,400
  5. Step 5: Solve for x
    x = 1,273,692,816,400/756,760
  6. Step 6: Final answer
    x = 1,683,086.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.