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Finding the Third Proportional to 431,384.25 and 667,265.63

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Solution

The third proportional to 431,384.25 and 667,265.63 is: 1,032,127.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,384.25 : 667,265.63 = 667,265.63 : x
  2. Step 2: Convert to fraction form
    431,384.25/667,265.63 = 667,265.63/x
  3. Step 3: Cross multiply
    431,384.25x = 667,265.63 × 667,265.63
  4. Step 4: Simplify right side
    431,384.25x = 445,243,414,306.64
  5. Step 5: Solve for x
    x = 445,243,414,306.64/431,384.25
  6. Step 6: Final answer
    x = 1,032,127.19

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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.