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Finding the Third Proportional to 1,215,729 and 2,645,523

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Solution

The third proportional to 1,215,729 and 2,645,523 is: 5,756,868.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,729 : 2,645,523 = 2,645,523 : x
  2. Step 2: Convert to fraction form
    1,215,729/2,645,523 = 2,645,523/x
  3. Step 3: Cross multiply
    1,215,729x = 2,645,523 × 2,645,523
  4. Step 4: Simplify right side
    1,215,729x = 6,998,791,943,529
  5. Step 5: Solve for x
    x = 6,998,791,943,529/1,215,729
  6. Step 6: Final answer
    x = 5,756,868.47

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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.