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Finding the Third Proportional to 515,576 and 1,135,800

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Solution

The third proportional to 515,576 and 1,135,800 is: 2,502,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,576 : 1,135,800 = 1,135,800 : x
  2. Step 2: Convert to fraction form
    515,576/1,135,800 = 1,135,800/x
  3. Step 3: Cross multiply
    515,576x = 1,135,800 × 1,135,800
  4. Step 4: Simplify right side
    515,576x = 1,290,041,640,000
  5. Step 5: Solve for x
    x = 1,290,041,640,000/515,576
  6. Step 6: Final answer
    x = 2,502,136.72

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.