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Finding the Third Proportional to 328,554 and 479,912

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Solution

The third proportional to 328,554 and 479,912 is: 700,997.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,554 : 479,912 = 479,912 : x
  2. Step 2: Convert to fraction form
    328,554/479,912 = 479,912/x
  3. Step 3: Cross multiply
    328,554x = 479,912 × 479,912
  4. Step 4: Simplify right side
    328,554x = 230,315,527,744
  5. Step 5: Solve for x
    x = 230,315,527,744/328,554
  6. Step 6: Final answer
    x = 700,997.49

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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.