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Finding the Fourth Proportional to 627.34, 936.38 and 535.36

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Solution

The fourth proportional to 627.34, 936.38 and 535.36 is: 799.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.34 : 936.38 = 535.36 : x
  2. Step 2: Convert to fraction form
    627.34/936.38 = 535.36/x
  3. Step 3: Cross multiply
    627.34x = 936.38 × 535.36
  4. Step 4: Simplify right side
    627.34x = 501,300.40
  5. Step 5: Solve for x
    x = 501,300.40/627.34
  6. Step 6: Final answer
    x = 799.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.