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Finding the Fourth Proportional to 863,992.80, 1,295,940.68 and 264,952.32

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Solution

The fourth proportional to 863,992.80, 1,295,940.68 and 264,952.32 is: 397,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,992.80 : 1,295,940.68 = 264,952.32 : x
  2. Step 2: Convert to fraction form
    863,992.80/1,295,940.68 = 264,952.32/x
  3. Step 3: Cross multiply
    863,992.80x = 1,295,940.68 × 264,952.32
  4. Step 4: Simplify right side
    863,992.80x = 343,362,484,930.01
  5. Step 5: Solve for x
    x = 343,362,484,930.01/863,992.80
  6. Step 6: Final answer
    x = 397,413.59

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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.