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Finding the Third Proportional to 617,311 and 1,347,739

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Solution

The third proportional to 617,311 and 1,347,739 is: 2,942,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,311 : 1,347,739 = 1,347,739 : x
  2. Step 2: Convert to fraction form
    617,311/1,347,739 = 1,347,739/x
  3. Step 3: Cross multiply
    617,311x = 1,347,739 × 1,347,739
  4. Step 4: Simplify right side
    617,311x = 1,816,400,412,121
  5. Step 5: Solve for x
    x = 1,816,400,412,121/617,311
  6. Step 6: Final answer
    x = 2,942,439.73

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.