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Finding the Third Proportional to 639,858 and 1,481,309

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Solution

The third proportional to 639,858 and 1,481,309 is: 3,429,317.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,858 : 1,481,309 = 1,481,309 : x
  2. Step 2: Convert to fraction form
    639,858/1,481,309 = 1,481,309/x
  3. Step 3: Cross multiply
    639,858x = 1,481,309 × 1,481,309
  4. Step 4: Simplify right side
    639,858x = 2,194,276,353,481
  5. Step 5: Solve for x
    x = 2,194,276,353,481/639,858
  6. Step 6: Final answer
    x = 3,429,317.68

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.