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Finding the Fourth Proportional to 439,382.64, 606,374.19 and 248,413.80

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Solution

The fourth proportional to 439,382.64, 606,374.19 and 248,413.80 is: 342,825.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,382.64 : 606,374.19 = 248,413.80 : x
  2. Step 2: Convert to fraction form
    439,382.64/606,374.19 = 248,413.80/x
  3. Step 3: Cross multiply
    439,382.64x = 606,374.19 × 248,413.80
  4. Step 4: Simplify right side
    439,382.64x = 150,631,716,759.82
  5. Step 5: Solve for x
    x = 150,631,716,759.82/439,382.64
  6. Step 6: Final answer
    x = 342,825.83

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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.