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Finding the Third Proportional to 978,889.88 and 2,102,377.97

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Solution

The third proportional to 978,889.88 and 2,102,377.97 is: 4,515,311.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,889.88 : 2,102,377.97 = 2,102,377.97 : x
  2. Step 2: Convert to fraction form
    978,889.88/2,102,377.97 = 2,102,377.97/x
  3. Step 3: Cross multiply
    978,889.88x = 2,102,377.97 × 2,102,377.97
  4. Step 4: Simplify right side
    978,889.88x = 4,419,993,123,485.38
  5. Step 5: Solve for x
    x = 4,419,993,123,485.38/978,889.88
  6. Step 6: Final answer
    x = 4,515,311.92

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.