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Finding the Third Proportional to 867,661.88 and 1,868,518.13

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Solution

The third proportional to 867,661.88 and 1,868,518.13 is: 4,023,871.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,661.88 : 1,868,518.13 = 1,868,518.13 : x
  2. Step 2: Convert to fraction form
    867,661.88/1,868,518.13 = 1,868,518.13/x
  3. Step 3: Cross multiply
    867,661.88x = 1,868,518.13 × 1,868,518.13
  4. Step 4: Simplify right side
    867,661.88x = 3,491,359,983,453.52
  5. Step 5: Solve for x
    x = 3,491,359,983,453.52/867,661.88
  6. Step 6: Final answer
    x = 4,023,871.61

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.