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Finding the Third Proportional to 388,206 and 823,068

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Solution

The third proportional to 388,206 and 823,068 is: 1,745,055.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,206 : 823,068 = 823,068 : x
  2. Step 2: Convert to fraction form
    388,206/823,068 = 823,068/x
  3. Step 3: Cross multiply
    388,206x = 823,068 × 823,068
  4. Step 4: Simplify right side
    388,206x = 677,440,932,624
  5. Step 5: Solve for x
    x = 677,440,932,624/388,206
  6. Step 6: Final answer
    x = 1,745,055.29

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.