Home / 428,163.12-641,063.70-322,662.24

Finding the Fourth Proportional to 428,163.12, 641,063.70 and 322,662.24

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Solution

The fourth proportional to 428,163.12, 641,063.70 and 322,662.24 is: 483,103.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,163.12 : 641,063.70 = 322,662.24 : x
  2. Step 2: Convert to fraction form
    428,163.12/641,063.70 = 322,662.24/x
  3. Step 3: Cross multiply
    428,163.12x = 641,063.70 × 322,662.24
  4. Step 4: Simplify right side
    428,163.12x = 206,847,049,424.69
  5. Step 5: Solve for x
    x = 206,847,049,424.69/428,163.12
  6. Step 6: Final answer
    x = 483,103.38

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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.