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Finding the Fourth Proportional to 436,817.56, 655,007.09 and 254,507.38

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Solution

The fourth proportional to 436,817.56, 655,007.09 and 254,507.38 is: 381,633.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,817.56 : 655,007.09 = 254,507.38 : x
  2. Step 2: Convert to fraction form
    436,817.56/655,007.09 = 254,507.38/x
  3. Step 3: Cross multiply
    436,817.56x = 655,007.09 × 254,507.38
  4. Step 4: Simplify right side
    436,817.56x = 166,704,135,447.27
  5. Step 5: Solve for x
    x = 166,704,135,447.27/436,817.56
  6. Step 6: Final answer
    x = 381,633.32

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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.