Home / 419,975.08-629,516.98-206,441.87

Finding the Fourth Proportional to 419,975.08, 629,516.98 and 206,441.87

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Solution

The fourth proportional to 419,975.08, 629,516.98 and 206,441.87 is: 309,443.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,975.08 : 629,516.98 = 206,441.87 : x
  2. Step 2: Convert to fraction form
    419,975.08/629,516.98 = 206,441.87/x
  3. Step 3: Cross multiply
    419,975.08x = 629,516.98 × 206,441.87
  4. Step 4: Simplify right side
    419,975.08x = 129,958,659,658.42
  5. Step 5: Solve for x
    x = 129,958,659,658.42/419,975.08
  6. Step 6: Final answer
    x = 309,443.74

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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.