Home / 404,278.20-557,481.83-281,912.85

Finding the Fourth Proportional to 404,278.20, 557,481.83 and 281,912.85

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Solution

The fourth proportional to 404,278.20, 557,481.83 and 281,912.85 is: 388,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,278.20 : 557,481.83 = 281,912.85 : x
  2. Step 2: Convert to fraction form
    404,278.20/557,481.83 = 281,912.85/x
  3. Step 3: Cross multiply
    404,278.20x = 557,481.83 × 281,912.85
  4. Step 4: Simplify right side
    404,278.20x = 157,161,290,108.95
  5. Step 5: Solve for x
    x = 157,161,290,108.95/404,278.20
  6. Step 6: Final answer
    x = 388,745.40

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1.5x scale

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.