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Finding the Third Proportional to 1,284,991 and 2,857,207

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Solution

The third proportional to 1,284,991 and 2,857,207 is: 6,353,065.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,991 : 2,857,207 = 2,857,207 : x
  2. Step 2: Convert to fraction form
    1,284,991/2,857,207 = 2,857,207/x
  3. Step 3: Cross multiply
    1,284,991x = 2,857,207 × 2,857,207
  4. Step 4: Simplify right side
    1,284,991x = 8,163,631,840,849
  5. Step 5: Solve for x
    x = 8,163,631,840,849/1,284,991
  6. Step 6: Final answer
    x = 6,353,065.38

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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.