Home / 859,856.31-1,289,797.22-327,406.86

Finding the Fourth Proportional to 859,856.31, 1,289,797.22 and 327,406.86

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Solution

The fourth proportional to 859,856.31, 1,289,797.22 and 327,406.86 is: 491,115.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,856.31 : 1,289,797.22 = 327,406.86 : x
  2. Step 2: Convert to fraction form
    859,856.31/1,289,797.22 = 327,406.86/x
  3. Step 3: Cross multiply
    859,856.31x = 1,289,797.22 × 327,406.86
  4. Step 4: Simplify right side
    859,856.31x = 422,288,458,655.45
  5. Step 5: Solve for x
    x = 422,288,458,655.45/859,856.31
  6. Step 6: Final answer
    x = 491,115.15

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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.