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Finding the Third Proportional to 621,904 and 1,288,088

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Solution

The third proportional to 621,904 and 1,288,088 is: 2,667,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,904 : 1,288,088 = 1,288,088 : x
  2. Step 2: Convert to fraction form
    621,904/1,288,088 = 1,288,088/x
  3. Step 3: Cross multiply
    621,904x = 1,288,088 × 1,288,088
  4. Step 4: Simplify right side
    621,904x = 1,659,170,695,744
  5. Step 5: Solve for x
    x = 1,659,170,695,744/621,904
  6. Step 6: Final answer
    x = 2,667,888.77

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.