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Finding the Third Proportional to 1,221,315 and 2,604,939

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Solution

The third proportional to 1,221,315 and 2,604,939 is: 5,556,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,315 : 2,604,939 = 2,604,939 : x
  2. Step 2: Convert to fraction form
    1,221,315/2,604,939 = 2,604,939/x
  3. Step 3: Cross multiply
    1,221,315x = 2,604,939 × 2,604,939
  4. Step 4: Simplify right side
    1,221,315x = 6,785,707,193,721
  5. Step 5: Solve for x
    x = 6,785,707,193,721/1,221,315
  6. Step 6: Final answer
    x = 5,556,066.37

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.