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Finding the Third Proportional to 402,232 and 866,212

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Solution

The third proportional to 402,232 and 866,212 is: 1,865,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,232 : 866,212 = 866,212 : x
  2. Step 2: Convert to fraction form
    402,232/866,212 = 866,212/x
  3. Step 3: Cross multiply
    402,232x = 866,212 × 866,212
  4. Step 4: Simplify right side
    402,232x = 750,323,228,944
  5. Step 5: Solve for x
    x = 750,323,228,944/402,232
  6. Step 6: Final answer
    x = 1,865,399.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.