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Finding the Fourth Proportional to 936.66, 1,403.50 and 627.37

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Solution

The fourth proportional to 936.66, 1,403.50 and 627.37 is: 940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.66 : 1,403.50 = 627.37 : x
  2. Step 2: Convert to fraction form
    936.66/1,403.50 = 627.37/x
  3. Step 3: Cross multiply
    936.66x = 1,403.50 × 627.37
  4. Step 4: Simplify right side
    936.66x = 880,513.98
  5. Step 5: Solve for x
    x = 880,513.98/936.66
  6. Step 6: Final answer
    x = 940.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.