Home / 856,486.20-1,284,626.70-225,449.76

Finding the Fourth Proportional to 856,486.20, 1,284,626.70 and 225,449.76

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Solution

The fourth proportional to 856,486.20, 1,284,626.70 and 225,449.76 is: 338,147.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,486.20 : 1,284,626.70 = 225,449.76 : x
  2. Step 2: Convert to fraction form
    856,486.20/1,284,626.70 = 225,449.76/x
  3. Step 3: Cross multiply
    856,486.20x = 1,284,626.70 × 225,449.76
  4. Step 4: Simplify right side
    856,486.20x = 289,618,781,204.59
  5. Step 5: Solve for x
    x = 289,618,781,204.59/856,486.20
  6. Step 6: Final answer
    x = 338,147.63

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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.