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Finding the Fourth Proportional to 662.86, 993.66 and 501.27

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Solution

The fourth proportional to 662.86, 993.66 and 501.27 is: 751.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.86 : 993.66 = 501.27 : x
  2. Step 2: Convert to fraction form
    662.86/993.66 = 501.27/x
  3. Step 3: Cross multiply
    662.86x = 993.66 × 501.27
  4. Step 4: Simplify right side
    662.86x = 498,091.95
  5. Step 5: Solve for x
    x = 498,091.95/662.86
  6. Step 6: Final answer
    x = 751.43

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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.