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Finding the Fourth Proportional to 539,578.19, 809,177.28 and 179,651.32

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Solution

The fourth proportional to 539,578.19, 809,177.28 and 179,651.32 is: 269,413.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,578.19 : 809,177.28 = 179,651.32 : x
  2. Step 2: Convert to fraction form
    539,578.19/809,177.28 = 179,651.32/x
  3. Step 3: Cross multiply
    539,578.19x = 809,177.28 × 179,651.32
  4. Step 4: Simplify right side
    539,578.19x = 145,369,763,769.37
  5. Step 5: Solve for x
    x = 145,369,763,769.37/539,578.19
  6. Step 6: Final answer
    x = 269,413.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.