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Finding the Third Proportional to 787,668.75 and 1,687,422.38

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Solution

The third proportional to 787,668.75 and 1,687,422.38 is: 3,614,964.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,668.75 : 1,687,422.38 = 1,687,422.38 : x
  2. Step 2: Convert to fraction form
    787,668.75/1,687,422.38 = 1,687,422.38/x
  3. Step 3: Cross multiply
    787,668.75x = 1,687,422.38 × 1,687,422.38
  4. Step 4: Simplify right side
    787,668.75x = 2,847,394,271,650.64
  5. Step 5: Solve for x
    x = 2,847,394,271,650.64/787,668.75
  6. Step 6: Final answer
    x = 3,614,964.12

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.