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Finding the Third Proportional to 756,728 and 1,128,524

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Solution

The third proportional to 756,728 and 1,128,524 is: 1,682,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,728 : 1,128,524 = 1,128,524 : x
  2. Step 2: Convert to fraction form
    756,728/1,128,524 = 1,128,524/x
  3. Step 3: Cross multiply
    756,728x = 1,128,524 × 1,128,524
  4. Step 4: Simplify right side
    756,728x = 1,273,566,418,576
  5. Step 5: Solve for x
    x = 1,273,566,418,576/756,728
  6. Step 6: Final answer
    x = 1,682,991.01

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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.