Home / 1,215,200.26-1,821,556.20-505,640.26

Finding the Fourth Proportional to 1,215,200.26, 1,821,556.20 and 505,640.26

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Solution

The fourth proportional to 1,215,200.26, 1,821,556.20 and 505,640.26 is: 757,942.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,200.26 : 1,821,556.20 = 505,640.26 : x
  2. Step 2: Convert to fraction form
    1,215,200.26/1,821,556.20 = 505,640.26/x
  3. Step 3: Cross multiply
    1,215,200.26x = 1,821,556.20 × 505,640.26
  4. Step 4: Simplify right side
    1,215,200.26x = 921,052,150,572.61
  5. Step 5: Solve for x
    x = 921,052,150,572.61/1,215,200.26
  6. Step 6: Final answer
    x = 757,942.69

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1.5x scale

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.