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Finding the Third Proportional to 1,339,740 and 2,889,378

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Solution

The third proportional to 1,339,740 and 2,889,378 is: 6,231,436.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,740 : 2,889,378 = 2,889,378 : x
  2. Step 2: Convert to fraction form
    1,339,740/2,889,378 = 2,889,378/x
  3. Step 3: Cross multiply
    1,339,740x = 2,889,378 × 2,889,378
  4. Step 4: Simplify right side
    1,339,740x = 8,348,505,226,884
  5. Step 5: Solve for x
    x = 8,348,505,226,884/1,339,740
  6. Step 6: Final answer
    x = 6,231,436.87

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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.