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Finding the Fourth Proportional to 662,856.42, 994,414.59 and 263,422.74

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Solution

The fourth proportional to 662,856.42, 994,414.59 and 263,422.74 is: 395,185.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,856.42 : 994,414.59 = 263,422.74 : x
  2. Step 2: Convert to fraction form
    662,856.42/994,414.59 = 263,422.74/x
  3. Step 3: Cross multiply
    662,856.42x = 994,414.59 × 263,422.74
  4. Step 4: Simplify right side
    662,856.42x = 261,951,415,993.78
  5. Step 5: Solve for x
    x = 261,951,415,993.78/662,856.42
  6. Step 6: Final answer
    x = 395,185.76

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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.