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Finding the Third Proportional to 451,621 and 660,474

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Solution

The third proportional to 451,621 and 660,474 is: 965,911.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,621 : 660,474 = 660,474 : x
  2. Step 2: Convert to fraction form
    451,621/660,474 = 660,474/x
  3. Step 3: Cross multiply
    451,621x = 660,474 × 660,474
  4. Step 4: Simplify right side
    451,621x = 436,225,904,676
  5. Step 5: Solve for x
    x = 436,225,904,676/451,621
  6. Step 6: Final answer
    x = 965,911.47

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.