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Finding the Fourth Proportional to 453.88, 629 and 445.24

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Solution

The fourth proportional to 453.88, 629 and 445.24 is: 617.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.88 : 629 = 445.24 : x
  2. Step 2: Convert to fraction form
    453.88/629 = 445.24/x
  3. Step 3: Cross multiply
    453.88x = 629 × 445.24
  4. Step 4: Simplify right side
    453.88x = 280,055.96
  5. Step 5: Solve for x
    x = 280,055.96/453.88
  6. Step 6: Final answer
    x = 617.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.