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Finding the Fourth Proportional to 627.32, 867.33 and 522.36

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Solution

The fourth proportional to 627.32, 867.33 and 522.36 is: 722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.32 : 867.33 = 522.36 : x
  2. Step 2: Convert to fraction form
    627.32/867.33 = 522.36/x
  3. Step 3: Cross multiply
    627.32x = 867.33 × 522.36
  4. Step 4: Simplify right side
    627.32x = 453,058.50
  5. Step 5: Solve for x
    x = 453,058.50/627.32
  6. Step 6: Final answer
    x = 722.21

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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.