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Finding the Third Proportional to 512,120 and 775,252

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Solution

The third proportional to 512,120 and 775,252 is: 1,173,583.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,120 : 775,252 = 775,252 : x
  2. Step 2: Convert to fraction form
    512,120/775,252 = 775,252/x
  3. Step 3: Cross multiply
    512,120x = 775,252 × 775,252
  4. Step 4: Simplify right side
    512,120x = 601,015,663,504
  5. Step 5: Solve for x
    x = 601,015,663,504/512,120
  6. Step 6: Final answer
    x = 1,173,583.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.