Home / 1,093,771.90-1,640,657.85-978,626.36

Finding the Fourth Proportional to 1,093,771.90, 1,640,657.85 and 978,626.36

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Solution

The fourth proportional to 1,093,771.90, 1,640,657.85 and 978,626.36 is: 1,467,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,771.90 : 1,640,657.85 = 978,626.36 : x
  2. Step 2: Convert to fraction form
    1,093,771.90/1,640,657.85 = 978,626.36/x
  3. Step 3: Cross multiply
    1,093,771.90x = 1,640,657.85 × 978,626.36
  4. Step 4: Simplify right side
    1,093,771.90x = 1,605,591,019,750.93
  5. Step 5: Solve for x
    x = 1,605,591,019,750.93/1,093,771.90
  6. Step 6: Final answer
    x = 1,467,939.54

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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.