Home / 499,091.13-688,767.44-281,372.85

Finding the Fourth Proportional to 499,091.13, 688,767.44 and 281,372.85

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Solution

The fourth proportional to 499,091.13, 688,767.44 and 281,372.85 is: 388,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,091.13 : 688,767.44 = 281,372.85 : x
  2. Step 2: Convert to fraction form
    499,091.13/688,767.44 = 281,372.85/x
  3. Step 3: Cross multiply
    499,091.13x = 688,767.44 × 281,372.85
  4. Step 4: Simplify right side
    499,091.13x = 193,800,456,173.14
  5. Step 5: Solve for x
    x = 193,800,456,173.14/499,091.13
  6. Step 6: Final answer
    x = 388,306.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.