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Finding the Third Proportional to 300,988 and 626,888

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Solution

The third proportional to 300,988 and 626,888 is: 1,305,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,988 : 626,888 = 626,888 : x
  2. Step 2: Convert to fraction form
    300,988/626,888 = 626,888/x
  3. Step 3: Cross multiply
    300,988x = 626,888 × 626,888
  4. Step 4: Simplify right side
    300,988x = 392,988,564,544
  5. Step 5: Solve for x
    x = 392,988,564,544/300,988
  6. Step 6: Final answer
    x = 1,305,661.90

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.