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Finding the Third Proportional to 425,808 and 667,656

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Solution

The third proportional to 425,808 and 667,656 is: 1,046,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,808 : 667,656 = 667,656 : x
  2. Step 2: Convert to fraction form
    425,808/667,656 = 667,656/x
  3. Step 3: Cross multiply
    425,808x = 667,656 × 667,656
  4. Step 4: Simplify right side
    425,808x = 445,764,534,336
  5. Step 5: Solve for x
    x = 445,764,534,336/425,808
  6. Step 6: Final answer
    x = 1,046,867.45

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.