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Finding the Fourth Proportional to 693.33, 956.69 and 413.56

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Solution

The fourth proportional to 693.33, 956.69 and 413.56 is: 570.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.33 : 956.69 = 413.56 : x
  2. Step 2: Convert to fraction form
    693.33/956.69 = 413.56/x
  3. Step 3: Cross multiply
    693.33x = 956.69 × 413.56
  4. Step 4: Simplify right side
    693.33x = 395,648.72
  5. Step 5: Solve for x
    x = 395,648.72/693.33
  6. Step 6: Final answer
    x = 570.65

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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.