Home / 408,914.27-613,633.85-198,437.39

Finding the Fourth Proportional to 408,914.27, 613,633.85 and 198,437.39

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Solution

The fourth proportional to 408,914.27, 613,633.85 and 198,437.39 is: 297,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,914.27 : 613,633.85 = 198,437.39 : x
  2. Step 2: Convert to fraction form
    408,914.27/613,633.85 = 198,437.39/x
  3. Step 3: Cross multiply
    408,914.27x = 613,633.85 × 198,437.39
  4. Step 4: Simplify right side
    408,914.27x = 121,767,899,609.65
  5. Step 5: Solve for x
    x = 121,767,899,609.65/408,914.27
  6. Step 6: Final answer
    x = 297,783.44

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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.