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Finding the Fourth Proportional to 662.01, 913.43 and 413.34

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Solution

The fourth proportional to 662.01, 913.43 and 413.34 is: 570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.01 : 913.43 = 413.34 : x
  2. Step 2: Convert to fraction form
    662.01/913.43 = 413.34/x
  3. Step 3: Cross multiply
    662.01x = 913.43 × 413.34
  4. Step 4: Simplify right side
    662.01x = 377,552.44
  5. Step 5: Solve for x
    x = 377,552.44/662.01
  6. Step 6: Final answer
    x = 570.32

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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.