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Finding the Third Proportional to 777,138 and 1,672,371

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Solution

The third proportional to 777,138 and 1,672,371 is: 3,598,877.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,138 : 1,672,371 = 1,672,371 : x
  2. Step 2: Convert to fraction form
    777,138/1,672,371 = 1,672,371/x
  3. Step 3: Cross multiply
    777,138x = 1,672,371 × 1,672,371
  4. Step 4: Simplify right side
    777,138x = 2,796,824,761,641
  5. Step 5: Solve for x
    x = 2,796,824,761,641/777,138
  6. Step 6: Final answer
    x = 3,598,877.88

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.