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Finding the Fourth Proportional to 627.43, 866.73 and 535.18

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Solution

The fourth proportional to 627.43, 866.73 and 535.18 is: 739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.43 : 866.73 = 535.18 : x
  2. Step 2: Convert to fraction form
    627.43/866.73 = 535.18/x
  3. Step 3: Cross multiply
    627.43x = 866.73 × 535.18
  4. Step 4: Simplify right side
    627.43x = 463,856.56
  5. Step 5: Solve for x
    x = 463,856.56/627.43
  6. Step 6: Final answer
    x = 739.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.