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Finding the Third Proportional to 1,215,615 and 2,645,286

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Solution

The third proportional to 1,215,615 and 2,645,286 is: 5,756,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,615 : 2,645,286 = 2,645,286 : x
  2. Step 2: Convert to fraction form
    1,215,615/2,645,286 = 2,645,286/x
  3. Step 3: Cross multiply
    1,215,615x = 2,645,286 × 2,645,286
  4. Step 4: Simplify right side
    1,215,615x = 6,997,538,021,796
  5. Step 5: Solve for x
    x = 6,997,538,021,796/1,215,615
  6. Step 6: Final answer
    x = 5,756,376.83

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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.