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Finding the Third Proportional to 687,611 and 1,493,557

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Solution

The third proportional to 687,611 and 1,493,557 is: 3,244,148.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,611 : 1,493,557 = 1,493,557 : x
  2. Step 2: Convert to fraction form
    687,611/1,493,557 = 1,493,557/x
  3. Step 3: Cross multiply
    687,611x = 1,493,557 × 1,493,557
  4. Step 4: Simplify right side
    687,611x = 2,230,712,512,249
  5. Step 5: Solve for x
    x = 2,230,712,512,249/687,611
  6. Step 6: Final answer
    x = 3,244,148.96

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.