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Finding the Third Proportional to 331,020 and 708,694

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Solution

The third proportional to 331,020 and 708,694 is: 1,517,271.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,020 : 708,694 = 708,694 : x
  2. Step 2: Convert to fraction form
    331,020/708,694 = 708,694/x
  3. Step 3: Cross multiply
    331,020x = 708,694 × 708,694
  4. Step 4: Simplify right side
    331,020x = 502,247,185,636
  5. Step 5: Solve for x
    x = 502,247,185,636/331,020
  6. Step 6: Final answer
    x = 1,517,271.42

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.