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Finding the Third Proportional to 393,072 and 923,928

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Solution

The third proportional to 393,072 and 923,928 is: 2,171,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,072 : 923,928 = 923,928 : x
  2. Step 2: Convert to fraction form
    393,072/923,928 = 923,928/x
  3. Step 3: Cross multiply
    393,072x = 923,928 × 923,928
  4. Step 4: Simplify right side
    393,072x = 853,642,949,184
  5. Step 5: Solve for x
    x = 853,642,949,184/393,072
  6. Step 6: Final answer
    x = 2,171,721.59

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.