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Finding the Third Proportional to 303,707 and 644,787

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Solution

The third proportional to 303,707 and 644,787 is: 1,368,918.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,707 : 644,787 = 644,787 : x
  2. Step 2: Convert to fraction form
    303,707/644,787 = 644,787/x
  3. Step 3: Cross multiply
    303,707x = 644,787 × 644,787
  4. Step 4: Simplify right side
    303,707x = 415,750,275,369
  5. Step 5: Solve for x
    x = 415,750,275,369/303,707
  6. Step 6: Final answer
    x = 1,368,918.98

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.