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Finding the Fourth Proportional to 627.18, 936.95 and 450.07

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Solution

The fourth proportional to 627.18, 936.95 and 450.07 is: 672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.18 : 936.95 = 450.07 : x
  2. Step 2: Convert to fraction form
    627.18/936.95 = 450.07/x
  3. Step 3: Cross multiply
    627.18x = 936.95 × 450.07
  4. Step 4: Simplify right side
    627.18x = 421,688.49
  5. Step 5: Solve for x
    x = 421,688.49/627.18
  6. Step 6: Final answer
    x = 672.36

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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.