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Finding the Third Proportional to 299,637 and 649,170

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Solution

The third proportional to 299,637 and 649,170 is: 1,406,440.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,637 : 649,170 = 649,170 : x
  2. Step 2: Convert to fraction form
    299,637/649,170 = 649,170/x
  3. Step 3: Cross multiply
    299,637x = 649,170 × 649,170
  4. Step 4: Simplify right side
    299,637x = 421,421,688,900
  5. Step 5: Solve for x
    x = 421,421,688,900/299,637
  6. Step 6: Final answer
    x = 1,406,440.76

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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.