Home / 403,919.64-557,411.76-231,791.70

Finding the Fourth Proportional to 403,919.64, 557,411.76 and 231,791.70

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Solution

The fourth proportional to 403,919.64, 557,411.76 and 231,791.70 is: 319,874.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,919.64 : 557,411.76 = 231,791.70 : x
  2. Step 2: Convert to fraction form
    403,919.64/557,411.76 = 231,791.70/x
  3. Step 3: Cross multiply
    403,919.64x = 557,411.76 × 231,791.70
  4. Step 4: Simplify right side
    403,919.64x = 129,203,419,450.39
  5. Step 5: Solve for x
    x = 129,203,419,450.39/403,919.64
  6. Step 6: Final answer
    x = 319,874.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.