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Finding the Fourth Proportional to 633.84, 874.62 and 413.22

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Solution

The fourth proportional to 633.84, 874.62 and 413.22 is: 570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.84 : 874.62 = 413.22 : x
  2. Step 2: Convert to fraction form
    633.84/874.62 = 413.22/x
  3. Step 3: Cross multiply
    633.84x = 874.62 × 413.22
  4. Step 4: Simplify right side
    633.84x = 361,410.48
  5. Step 5: Solve for x
    x = 361,410.48/633.84
  6. Step 6: Final answer
    x = 570.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.