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Finding the Third Proportional to 1,215,692 and 2,645,439

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Solution

The third proportional to 1,215,692 and 2,645,439 is: 5,756,678.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,692 : 2,645,439 = 2,645,439 : x
  2. Step 2: Convert to fraction form
    1,215,692/2,645,439 = 2,645,439/x
  3. Step 3: Cross multiply
    1,215,692x = 2,645,439 × 2,645,439
  4. Step 4: Simplify right side
    1,215,692x = 6,998,347,502,721
  5. Step 5: Solve for x
    x = 6,998,347,502,721/1,215,692
  6. Step 6: Final answer
    x = 5,756,678.09

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.