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Finding the Fourth Proportional to 636.93, 953.77 and 441.66

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Solution

The fourth proportional to 636.93, 953.77 and 441.66 is: 661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.93 : 953.77 = 441.66 : x
  2. Step 2: Convert to fraction form
    636.93/953.77 = 441.66/x
  3. Step 3: Cross multiply
    636.93x = 953.77 × 441.66
  4. Step 4: Simplify right side
    636.93x = 421,242.06
  5. Step 5: Solve for x
    x = 421,242.06/636.93
  6. Step 6: Final answer
    x = 661.36

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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.