Home / 3,211,226.82-4,816,856.32-815,072.16

Finding the Fourth Proportional to 3,211,226.82, 4,816,856.32 and 815,072.16

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Solution

The fourth proportional to 3,211,226.82, 4,816,856.32 and 815,072.16 is: 1,222,612.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211,226.82 : 4,816,856.32 = 815,072.16 : x
  2. Step 2: Convert to fraction form
    3,211,226.82/4,816,856.32 = 815,072.16/x
  3. Step 3: Cross multiply
    3,211,226.82x = 4,816,856.32 × 815,072.16
  4. Step 4: Simplify right side
    3,211,226.82x = 3,926,085,485,152.05
  5. Step 5: Solve for x
    x = 3,926,085,485,152.05/3,211,226.82
  6. Step 6: Final answer
    x = 1,222,612.32

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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.