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Finding the Fourth Proportional to 628.74, 941.28 and 467.14

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Solution

The fourth proportional to 628.74, 941.28 and 467.14 is: 699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.74 : 941.28 = 467.14 : x
  2. Step 2: Convert to fraction form
    628.74/941.28 = 467.14/x
  3. Step 3: Cross multiply
    628.74x = 941.28 × 467.14
  4. Step 4: Simplify right side
    628.74x = 439,709.54
  5. Step 5: Solve for x
    x = 439,709.54/628.74
  6. Step 6: Final answer
    x = 699.35

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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.