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Finding the Third Proportional to 561,318 and 1,234,720

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Solution

The third proportional to 561,318 and 1,234,720 is: 2,715,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,318 : 1,234,720 = 1,234,720 : x
  2. Step 2: Convert to fraction form
    561,318/1,234,720 = 1,234,720/x
  3. Step 3: Cross multiply
    561,318x = 1,234,720 × 1,234,720
  4. Step 4: Simplify right side
    561,318x = 1,524,533,478,400
  5. Step 5: Solve for x
    x = 1,524,533,478,400/561,318
  6. Step 6: Final answer
    x = 2,715,988.94

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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.