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Finding the Third Proportional to 1,687,489 and 2,613,615

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Solution

The third proportional to 1,687,489 and 2,613,615 is: 4,048,016.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,489 : 2,613,615 = 2,613,615 : x
  2. Step 2: Convert to fraction form
    1,687,489/2,613,615 = 2,613,615/x
  3. Step 3: Cross multiply
    1,687,489x = 2,613,615 × 2,613,615
  4. Step 4: Simplify right side
    1,687,489x = 6,830,983,368,225
  5. Step 5: Solve for x
    x = 6,830,983,368,225/1,687,489
  6. Step 6: Final answer
    x = 4,048,016.53

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.