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Finding the Fourth Proportional to 479.13, 662.06 and 413.52

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Solution

The fourth proportional to 479.13, 662.06 and 413.52 is: 571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.13 : 662.06 = 413.52 : x
  2. Step 2: Convert to fraction form
    479.13/662.06 = 413.52/x
  3. Step 3: Cross multiply
    479.13x = 662.06 × 413.52
  4. Step 4: Simplify right side
    479.13x = 273,773.60
  5. Step 5: Solve for x
    x = 273,773.60/479.13
  6. Step 6: Final answer
    x = 571.40

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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.