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Finding the Third Proportional to 520,515 and 1,253,940.75

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Solution

The third proportional to 520,515 and 1,253,940.75 is: 3,020,791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,515 : 1,253,940.75 = 1,253,940.75 : x
  2. Step 2: Convert to fraction form
    520,515/1,253,940.75 = 1,253,940.75/x
  3. Step 3: Cross multiply
    520,515x = 1,253,940.75 × 1,253,940.75
  4. Step 4: Simplify right side
    520,515x = 1,572,367,404,510.56
  5. Step 5: Solve for x
    x = 1,572,367,404,510.56/520,515
  6. Step 6: Final answer
    x = 3,020,791.72

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.