Home / 412,023.82-618,435.24-198,942.08

Finding the Fourth Proportional to 412,023.82, 618,435.24 and 198,942.08

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Solution

The fourth proportional to 412,023.82, 618,435.24 and 198,942.08 is: 298,606.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,023.82 : 618,435.24 = 198,942.08 : x
  2. Step 2: Convert to fraction form
    412,023.82/618,435.24 = 198,942.08/x
  3. Step 3: Cross multiply
    412,023.82x = 618,435.24 × 198,942.08
  4. Step 4: Simplify right side
    412,023.82x = 123,032,792,990.90
  5. Step 5: Solve for x
    x = 123,032,792,990.90/412,023.82
  6. Step 6: Final answer
    x = 298,606.02

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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.