Home / 3,211,413.78-4,817,120.64-1,081,319.52

Finding the Fourth Proportional to 3,211,413.78, 4,817,120.64 and 1,081,319.52

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Solution

The fourth proportional to 3,211,413.78, 4,817,120.64 and 1,081,319.52 is: 1,621,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211,413.78 : 4,817,120.64 = 1,081,319.52 : x
  2. Step 2: Convert to fraction form
    3,211,413.78/4,817,120.64 = 1,081,319.52/x
  3. Step 3: Cross multiply
    3,211,413.78x = 4,817,120.64 × 1,081,319.52
  4. Step 4: Simplify right side
    3,211,413.78x = 5,208,846,578,226.89
  5. Step 5: Solve for x
    x = 5,208,846,578,226.89/3,211,413.78
  6. Step 6: Final answer
    x = 1,621,979.27

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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.