Home / 859,814.10-1,290,231.45-327,388.95

Finding the Fourth Proportional to 859,814.10, 1,290,231.45 and 327,388.95

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Solution

The fourth proportional to 859,814.10, 1,290,231.45 and 327,388.95 is: 491,277.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,814.10 : 1,290,231.45 = 327,388.95 : x
  2. Step 2: Convert to fraction form
    859,814.10/1,290,231.45 = 327,388.95/x
  3. Step 3: Cross multiply
    859,814.10x = 1,290,231.45 × 327,388.95
  4. Step 4: Simplify right side
    859,814.10x = 422,407,519,672.48
  5. Step 5: Solve for x
    x = 422,407,519,672.48/859,814.10
  6. Step 6: Final answer
    x = 491,277.73

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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.