Home / 393,569.83-590,791.79-203,979.43

Finding the Fourth Proportional to 393,569.83, 590,791.79 and 203,979.43

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Solution

The fourth proportional to 393,569.83, 590,791.79 and 203,979.43 is: 306,195.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,569.83 : 590,791.79 = 203,979.43 : x
  2. Step 2: Convert to fraction form
    393,569.83/590,791.79 = 203,979.43/x
  3. Step 3: Cross multiply
    393,569.83x = 590,791.79 × 203,979.43
  4. Step 4: Simplify right side
    393,569.83x = 120,509,372,572.88
  5. Step 5: Solve for x
    x = 120,509,372,572.88/393,569.83
  6. Step 6: Final answer
    x = 306,195.66

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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.