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Finding the Fourth Proportional to 800,859.96, 1,201,305 and 374,278.74

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Solution

The fourth proportional to 800,859.96, 1,201,305 and 374,278.74 is: 561,425.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,859.96 : 1,201,305 = 374,278.74 : x
  2. Step 2: Convert to fraction form
    800,859.96/1,201,305 = 374,278.74/x
  3. Step 3: Cross multiply
    800,859.96x = 1,201,305 × 374,278.74
  4. Step 4: Simplify right side
    800,859.96x = 449,622,921,755.70
  5. Step 5: Solve for x
    x = 449,622,921,755.70/800,859.96
  6. Step 6: Final answer
    x = 561,425.15

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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.