Home / 859,785.45-1,289,690.43-327,335.70

Finding the Fourth Proportional to 859,785.45, 1,289,690.43 and 327,335.70

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Solution

The fourth proportional to 859,785.45, 1,289,690.43 and 327,335.70 is: 491,008.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,785.45 : 1,289,690.43 = 327,335.70 : x
  2. Step 2: Convert to fraction form
    859,785.45/1,289,690.43 = 327,335.70/x
  3. Step 3: Cross multiply
    859,785.45x = 1,289,690.43 × 327,335.70
  4. Step 4: Simplify right side
    859,785.45x = 422,161,719,687.35
  5. Step 5: Solve for x
    x = 422,161,719,687.35/859,785.45
  6. Step 6: Final answer
    x = 491,008.22

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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.