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Finding the Fourth Proportional to 453.42, 621.63 and 441.18

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Solution

The fourth proportional to 453.42, 621.63 and 441.18 is: 604.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.42 : 621.63 = 441.18 : x
  2. Step 2: Convert to fraction form
    453.42/621.63 = 441.18/x
  3. Step 3: Cross multiply
    453.42x = 621.63 × 441.18
  4. Step 4: Simplify right side
    453.42x = 274,250.72
  5. Step 5: Solve for x
    x = 274,250.72/453.42
  6. Step 6: Final answer
    x = 604.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.