Home / 3,085,921.38-4,626,640.09-1,289,318.64

Finding the Fourth Proportional to 3,085,921.38, 4,626,640.09 and 1,289,318.64

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Solution

The fourth proportional to 3,085,921.38, 4,626,640.09 and 1,289,318.64 is: 1,933,041.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085,921.38 : 4,626,640.09 = 1,289,318.64 : x
  2. Step 2: Convert to fraction form
    3,085,921.38/4,626,640.09 = 1,289,318.64/x
  3. Step 3: Cross multiply
    3,085,921.38x = 4,626,640.09 × 1,289,318.64
  4. Step 4: Simplify right side
    3,085,921.38x = 5,965,213,308,608.28
  5. Step 5: Solve for x
    x = 5,965,213,308,608.28/3,085,921.38
  6. Step 6: Final answer
    x = 1,933,041.25

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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.