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Finding the Fourth Proportional to 636.07, 953.37 and 629.23

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Solution

The fourth proportional to 636.07, 953.37 and 629.23 is: 943.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.07 : 953.37 = 629.23 : x
  2. Step 2: Convert to fraction form
    636.07/953.37 = 629.23/x
  3. Step 3: Cross multiply
    636.07x = 953.37 × 629.23
  4. Step 4: Simplify right side
    636.07x = 599,889.01
  5. Step 5: Solve for x
    x = 599,889.01/636.07
  6. Step 6: Final answer
    x = 943.12

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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.