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Finding the Third Proportional to 393,246 and 591,815

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Solution

The third proportional to 393,246 and 591,815 is: 890,651.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,246 : 591,815 = 591,815 : x
  2. Step 2: Convert to fraction form
    393,246/591,815 = 591,815/x
  3. Step 3: Cross multiply
    393,246x = 591,815 × 591,815
  4. Step 4: Simplify right side
    393,246x = 350,244,994,225
  5. Step 5: Solve for x
    x = 350,244,994,225/393,246
  6. Step 6: Final answer
    x = 890,651.13

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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.