Home / 1,613,121.75-2,419,682.67-491,190.75

Finding the Fourth Proportional to 1,613,121.75, 2,419,682.67 and 491,190.75

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Solution

The fourth proportional to 1,613,121.75, 2,419,682.67 and 491,190.75 is: 736,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,121.75 : 2,419,682.67 = 491,190.75 : x
  2. Step 2: Convert to fraction form
    1,613,121.75/2,419,682.67 = 491,190.75/x
  3. Step 3: Cross multiply
    1,613,121.75x = 2,419,682.67 × 491,190.75
  4. Step 4: Simplify right side
    1,613,121.75x = 1,188,525,745,439.30
  5. Step 5: Solve for x
    x = 1,188,525,745,439.30/1,613,121.75
  6. Step 6: Final answer
    x = 736,786.14

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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.