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Finding the Fourth Proportional to 632.57, 873.18 and 411.62

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Solution

The fourth proportional to 632.57, 873.18 and 411.62 is: 568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.57 : 873.18 = 411.62 : x
  2. Step 2: Convert to fraction form
    632.57/873.18 = 411.62/x
  3. Step 3: Cross multiply
    632.57x = 873.18 × 411.62
  4. Step 4: Simplify right side
    632.57x = 359,413.99
  5. Step 5: Solve for x
    x = 359,413.99/632.57
  6. Step 6: Final answer
    x = 568.19

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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.