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Finding the Third Proportional to 637,759 and 1,387,611

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Solution

The third proportional to 637,759 and 1,387,611 is: 3,019,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,759 : 1,387,611 = 1,387,611 : x
  2. Step 2: Convert to fraction form
    637,759/1,387,611 = 1,387,611/x
  3. Step 3: Cross multiply
    637,759x = 1,387,611 × 1,387,611
  4. Step 4: Simplify right side
    637,759x = 1,925,464,287,321
  5. Step 5: Solve for x
    x = 1,925,464,287,321/637,759
  6. Step 6: Final answer
    x = 3,019,109.55

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.