Home / 378,789.40-568,840.20-366,979.60

Finding the Fourth Proportional to 378,789.40, 568,840.20 and 366,979.60

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Solution

The fourth proportional to 378,789.40, 568,840.20 and 366,979.60 is: 551,105.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,789.40 : 568,840.20 = 366,979.60 : x
  2. Step 2: Convert to fraction form
    378,789.40/568,840.20 = 366,979.60/x
  3. Step 3: Cross multiply
    378,789.40x = 568,840.20 × 366,979.60
  4. Step 4: Simplify right side
    378,789.40x = 208,752,749,059.92
  5. Step 5: Solve for x
    x = 208,752,749,059.92/378,789.40
  6. Step 6: Final answer
    x = 551,105.04

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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.