Home / 825,413.06-1,238,121.40-226,382.78

Finding the Fourth Proportional to 825,413.06, 1,238,121.40 and 226,382.78

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Solution

The fourth proportional to 825,413.06, 1,238,121.40 and 226,382.78 is: 339,574.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,413.06 : 1,238,121.40 = 226,382.78 : x
  2. Step 2: Convert to fraction form
    825,413.06/1,238,121.40 = 226,382.78/x
  3. Step 3: Cross multiply
    825,413.06x = 1,238,121.40 × 226,382.78
  4. Step 4: Simplify right side
    825,413.06x = 280,289,364,509.49
  5. Step 5: Solve for x
    x = 280,289,364,509.49/825,413.06
  6. Step 6: Final answer
    x = 339,574.67

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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.