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Finding the Third Proportional to 397,202 and 851,258

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Solution

The third proportional to 397,202 and 851,258 is: 1,824,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,202 : 851,258 = 851,258 : x
  2. Step 2: Convert to fraction form
    397,202/851,258 = 851,258/x
  3. Step 3: Cross multiply
    397,202x = 851,258 × 851,258
  4. Step 4: Simplify right side
    397,202x = 724,640,182,564
  5. Step 5: Solve for x
    x = 724,640,182,564/397,202
  6. Step 6: Final answer
    x = 1,824,361.87

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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.