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Finding the Third Proportional to 479,450 and 718,311

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Solution

The third proportional to 479,450 and 718,311 is: 1,076,172.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,450 : 718,311 = 718,311 : x
  2. Step 2: Convert to fraction form
    479,450/718,311 = 718,311/x
  3. Step 3: Cross multiply
    479,450x = 718,311 × 718,311
  4. Step 4: Simplify right side
    479,450x = 515,970,692,721
  5. Step 5: Solve for x
    x = 515,970,692,721/479,450
  6. Step 6: Final answer
    x = 1,076,172.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.