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Finding the Third Proportional to 432,694 and 645,441

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Solution

The third proportional to 432,694 and 645,441 is: 962,791.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,694 : 645,441 = 645,441 : x
  2. Step 2: Convert to fraction form
    432,694/645,441 = 645,441/x
  3. Step 3: Cross multiply
    432,694x = 645,441 × 645,441
  4. Step 4: Simplify right side
    432,694x = 416,594,084,481
  5. Step 5: Solve for x
    x = 416,594,084,481/432,694
  6. Step 6: Final answer
    x = 962,791.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.