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Finding the Third Proportional to 638,550 and 1,373,967

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Solution

The third proportional to 638,550 and 1,373,967 is: 2,956,362.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,550 : 1,373,967 = 1,373,967 : x
  2. Step 2: Convert to fraction form
    638,550/1,373,967 = 1,373,967/x
  3. Step 3: Cross multiply
    638,550x = 1,373,967 × 1,373,967
  4. Step 4: Simplify right side
    638,550x = 1,887,785,317,089
  5. Step 5: Solve for x
    x = 1,887,785,317,089/638,550
  6. Step 6: Final answer
    x = 2,956,362.57

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.