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Finding the Third Proportional to 756,819 and 1,138,418

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Solution

The third proportional to 756,819 and 1,138,418 is: 1,712,424.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,819 : 1,138,418 = 1,138,418 : x
  2. Step 2: Convert to fraction form
    756,819/1,138,418 = 1,138,418/x
  3. Step 3: Cross multiply
    756,819x = 1,138,418 × 1,138,418
  4. Step 4: Simplify right side
    756,819x = 1,295,995,542,724
  5. Step 5: Solve for x
    x = 1,295,995,542,724/756,819
  6. Step 6: Final answer
    x = 1,712,424.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.