Home / 862,198.37-1,189,834.11-499,832.32

Finding the Fourth Proportional to 862,198.37, 1,189,834.11 and 499,832.32

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Solution

The fourth proportional to 862,198.37, 1,189,834.11 and 499,832.32 is: 689,768.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,198.37 : 1,189,834.11 = 499,832.32 : x
  2. Step 2: Convert to fraction form
    862,198.37/1,189,834.11 = 499,832.32/x
  3. Step 3: Cross multiply
    862,198.37x = 1,189,834.11 × 499,832.32
  4. Step 4: Simplify right side
    862,198.37x = 594,717,542,872.79
  5. Step 5: Solve for x
    x = 594,717,542,872.79/862,198.37
  6. Step 6: Final answer
    x = 689,768.81

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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.