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Finding the Third Proportional to 300,775 and 668,798

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Solution

The third proportional to 300,775 and 668,798 is: 1,487,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,775 : 668,798 = 668,798 : x
  2. Step 2: Convert to fraction form
    300,775/668,798 = 668,798/x
  3. Step 3: Cross multiply
    300,775x = 668,798 × 668,798
  4. Step 4: Simplify right side
    300,775x = 447,290,764,804
  5. Step 5: Solve for x
    x = 447,290,764,804/300,775
  6. Step 6: Final answer
    x = 1,487,127.47

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.