Home / 398,942.20-598,413.30-383,195.80

Finding the Fourth Proportional to 398,942.20, 598,413.30 and 383,195.80

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Solution

The fourth proportional to 398,942.20, 598,413.30 and 383,195.80 is: 574,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,942.20 : 598,413.30 = 383,195.80 : x
  2. Step 2: Convert to fraction form
    398,942.20/598,413.30 = 383,195.80/x
  3. Step 3: Cross multiply
    398,942.20x = 598,413.30 × 383,195.80
  4. Step 4: Simplify right side
    398,942.20x = 229,309,463,224.14
  5. Step 5: Solve for x
    x = 229,309,463,224.14/398,942.20
  6. Step 6: Final answer
    x = 574,793.70

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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.