Home / 727,414.34-1,091,121.60-221,978

Finding the Fourth Proportional to 727,414.34, 1,091,121.60 and 221,978

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Solution

The fourth proportional to 727,414.34, 1,091,121.60 and 221,978 is: 332,967.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,414.34 : 1,091,121.60 = 221,978 : x
  2. Step 2: Convert to fraction form
    727,414.34/1,091,121.60 = 221,978/x
  3. Step 3: Cross multiply
    727,414.34x = 1,091,121.60 × 221,978
  4. Step 4: Simplify right side
    727,414.34x = 242,204,990,524.80
  5. Step 5: Solve for x
    x = 242,204,990,524.80/727,414.34
  6. Step 6: Final answer
    x = 332,967.03

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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.