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Finding the Fourth Proportional to 628.14, 941.19 and 444.63

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Solution

The fourth proportional to 628.14, 941.19 and 444.63 is: 666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.14 : 941.19 = 444.63 : x
  2. Step 2: Convert to fraction form
    628.14/941.19 = 444.63/x
  3. Step 3: Cross multiply
    628.14x = 941.19 × 444.63
  4. Step 4: Simplify right side
    628.14x = 418,481.31
  5. Step 5: Solve for x
    x = 418,481.31/628.14
  6. Step 6: Final answer
    x = 666.22

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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.