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Finding the Third Proportional to 1,200,913 and 2,638,021

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Solution

The third proportional to 1,200,913 and 2,638,021 is: 5,794,886.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,913 : 2,638,021 = 2,638,021 : x
  2. Step 2: Convert to fraction form
    1,200,913/2,638,021 = 2,638,021/x
  3. Step 3: Cross multiply
    1,200,913x = 2,638,021 × 2,638,021
  4. Step 4: Simplify right side
    1,200,913x = 6,959,154,796,441
  5. Step 5: Solve for x
    x = 6,959,154,796,441/1,200,913
  6. Step 6: Final answer
    x = 5,794,886.72

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.