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Finding the Fourth Proportional to 708.23, 977.36 and 413.52

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Solution

The fourth proportional to 708.23, 977.36 and 413.52 is: 570.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.23 : 977.36 = 413.52 : x
  2. Step 2: Convert to fraction form
    708.23/977.36 = 413.52/x
  3. Step 3: Cross multiply
    708.23x = 977.36 × 413.52
  4. Step 4: Simplify right side
    708.23x = 404,158.94
  5. Step 5: Solve for x
    x = 404,158.94/708.23
  6. Step 6: Final answer
    x = 570.66

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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.