Home / 398,604.27-597,590.66-198,821.82

Finding the Fourth Proportional to 398,604.27, 597,590.66 and 198,821.82

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Solution

The fourth proportional to 398,604.27, 597,590.66 and 198,821.82 is: 298,075.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,604.27 : 597,590.66 = 198,821.82 : x
  2. Step 2: Convert to fraction form
    398,604.27/597,590.66 = 198,821.82/x
  3. Step 3: Cross multiply
    398,604.27x = 597,590.66 × 198,821.82
  4. Step 4: Simplify right side
    398,604.27x = 118,814,061,642.09
  5. Step 5: Solve for x
    x = 118,814,061,642.09/398,604.27
  6. Step 6: Final answer
    x = 298,075.24

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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.