Home / 398,550.68-597,935.38-198,629.72

Finding the Fourth Proportional to 398,550.68, 597,935.38 and 198,629.72

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Solution

The fourth proportional to 398,550.68, 597,935.38 and 198,629.72 is: 297,999.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,550.68 : 597,935.38 = 198,629.72 : x
  2. Step 2: Convert to fraction form
    398,550.68/597,935.38 = 198,629.72/x
  3. Step 3: Cross multiply
    398,550.68x = 597,935.38 × 198,629.72
  4. Step 4: Simplify right side
    398,550.68x = 118,767,737,107.49
  5. Step 5: Solve for x
    x = 118,767,737,107.49/398,550.68
  6. Step 6: Final answer
    x = 297,999.08

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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.