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Finding the Fourth Proportional to 806,754.12, 1,210,138.12 and 230,375.92

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Solution

The fourth proportional to 806,754.12, 1,210,138.12 and 230,375.92 is: 345,565.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,754.12 : 1,210,138.12 = 230,375.92 : x
  2. Step 2: Convert to fraction form
    806,754.12/1,210,138.12 = 230,375.92/x
  3. Step 3: Cross multiply
    806,754.12x = 1,210,138.12 × 230,375.92
  4. Step 4: Simplify right side
    806,754.12x = 278,786,682,722.07
  5. Step 5: Solve for x
    x = 278,786,682,722.07/806,754.12
  6. Step 6: Final answer
    x = 345,565.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.