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Finding the Third Proportional to 1,398,309.75 and 2,116,368

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Solution

The third proportional to 1,398,309.75 and 2,116,368 is: 3,203,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,309.75 : 2,116,368 = 2,116,368 : x
  2. Step 2: Convert to fraction form
    1,398,309.75/2,116,368 = 2,116,368/x
  3. Step 3: Cross multiply
    1,398,309.75x = 2,116,368 × 2,116,368
  4. Step 4: Simplify right side
    1,398,309.75x = 4,479,013,511,424
  5. Step 5: Solve for x
    x = 4,479,013,511,424/1,398,309.75
  6. Step 6: Final answer
    x = 3,203,162.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.