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Finding the Fourth Proportional to 627.94, 936.50 and 607.69

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Solution

The fourth proportional to 627.94, 936.50 and 607.69 is: 906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.94 : 936.50 = 607.69 : x
  2. Step 2: Convert to fraction form
    627.94/936.50 = 607.69/x
  3. Step 3: Cross multiply
    627.94x = 936.50 × 607.69
  4. Step 4: Simplify right side
    627.94x = 569,101.69
  5. Step 5: Solve for x
    x = 569,101.69/627.94
  6. Step 6: Final answer
    x = 906.30

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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.