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Finding the Third Proportional to 756,716 and 1,128,508

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Solution

The third proportional to 756,716 and 1,128,508 is: 1,682,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,716 : 1,128,508 = 1,128,508 : x
  2. Step 2: Convert to fraction form
    756,716/1,128,508 = 1,128,508/x
  3. Step 3: Cross multiply
    756,716x = 1,128,508 × 1,128,508
  4. Step 4: Simplify right side
    756,716x = 1,273,530,306,064
  5. Step 5: Solve for x
    x = 1,273,530,306,064/756,716
  6. Step 6: Final answer
    x = 1,682,969.97

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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.