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Finding the Third Proportional to 408,283 and 612,832

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Solution

The third proportional to 408,283 and 612,832 is: 919,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,283 : 612,832 = 612,832 : x
  2. Step 2: Convert to fraction form
    408,283/612,832 = 612,832/x
  3. Step 3: Cross multiply
    408,283x = 612,832 × 612,832
  4. Step 4: Simplify right side
    408,283x = 375,563,060,224
  5. Step 5: Solve for x
    x = 375,563,060,224/408,283
  6. Step 6: Final answer
    x = 919,859.66

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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.