Home / 672,076.80-1,008,211.20-198,700.80

Finding the Fourth Proportional to 672,076.80, 1,008,211.20 and 198,700.80

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Solution

The fourth proportional to 672,076.80, 1,008,211.20 and 198,700.80 is: 298,079.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,076.80 : 1,008,211.20 = 198,700.80 : x
  2. Step 2: Convert to fraction form
    672,076.80/1,008,211.20 = 198,700.80/x
  3. Step 3: Cross multiply
    672,076.80x = 1,008,211.20 × 198,700.80
  4. Step 4: Simplify right side
    672,076.80x = 200,332,372,008.96
  5. Step 5: Solve for x
    x = 200,332,372,008.96/672,076.80
  6. Step 6: Final answer
    x = 298,079.58

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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.