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Finding the Third Proportional to 351,384 and 769,392

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Solution

The third proportional to 351,384 and 769,392 is: 1,684,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,384 : 769,392 = 769,392 : x
  2. Step 2: Convert to fraction form
    351,384/769,392 = 769,392/x
  3. Step 3: Cross multiply
    351,384x = 769,392 × 769,392
  4. Step 4: Simplify right side
    351,384x = 591,964,049,664
  5. Step 5: Solve for x
    x = 591,964,049,664/351,384
  6. Step 6: Final answer
    x = 1,684,664.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.