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Finding the Fourth Proportional to 404,383.20, 606,963.60 and 204,928.80

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Solution

The fourth proportional to 404,383.20, 606,963.60 and 204,928.80 is: 307,590.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,383.20 : 606,963.60 = 204,928.80 : x
  2. Step 2: Convert to fraction form
    404,383.20/606,963.60 = 204,928.80/x
  3. Step 3: Cross multiply
    404,383.20x = 606,963.60 × 204,928.80
  4. Step 4: Simplify right side
    404,383.20x = 124,384,322,191.68
  5. Step 5: Solve for x
    x = 124,384,322,191.68/404,383.20
  6. Step 6: Final answer
    x = 307,590.23

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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.