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Finding the Third Proportional to 393,912 and 573,644

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Solution

The third proportional to 393,912 and 573,644 is: 835,383.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,912 : 573,644 = 573,644 : x
  2. Step 2: Convert to fraction form
    393,912/573,644 = 573,644/x
  3. Step 3: Cross multiply
    393,912x = 573,644 × 573,644
  4. Step 4: Simplify right side
    393,912x = 329,067,438,736
  5. Step 5: Solve for x
    x = 329,067,438,736/393,912
  6. Step 6: Final answer
    x = 835,383.13

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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.