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Finding the Third Proportional to 300,897 and 649,190.25

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Solution

The third proportional to 300,897 and 649,190.25 is: 1,400,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,897 : 649,190.25 = 649,190.25 : x
  2. Step 2: Convert to fraction form
    300,897/649,190.25 = 649,190.25/x
  3. Step 3: Cross multiply
    300,897x = 649,190.25 × 649,190.25
  4. Step 4: Simplify right side
    300,897x = 421,447,980,695.06
  5. Step 5: Solve for x
    x = 421,447,980,695.06/300,897
  6. Step 6: Final answer
    x = 1,400,638.69

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.