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Finding the Third Proportional to 633,555 and 1,378,647

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Solution

The third proportional to 633,555 and 1,378,647 is: 3,000,004.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,555 : 1,378,647 = 1,378,647 : x
  2. Step 2: Convert to fraction form
    633,555/1,378,647 = 1,378,647/x
  3. Step 3: Cross multiply
    633,555x = 1,378,647 × 1,378,647
  4. Step 4: Simplify right side
    633,555x = 1,900,667,550,609
  5. Step 5: Solve for x
    x = 1,900,667,550,609/633,555
  6. Step 6: Final answer
    x = 3,000,004.03

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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.