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Finding the Fourth Proportional to 627.52, 940.04 and 383.44

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Solution

The fourth proportional to 627.52, 940.04 and 383.44 is: 574.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.52 : 940.04 = 383.44 : x
  2. Step 2: Convert to fraction form
    627.52/940.04 = 383.44/x
  3. Step 3: Cross multiply
    627.52x = 940.04 × 383.44
  4. Step 4: Simplify right side
    627.52x = 360,448.94
  5. Step 5: Solve for x
    x = 360,448.94/627.52
  6. Step 6: Final answer
    x = 574.40

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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.