Home / 490,632.08-677,091.44-275,771.48

Finding the Fourth Proportional to 490,632.08, 677,091.44 and 275,771.48

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Solution

The fourth proportional to 490,632.08, 677,091.44 and 275,771.48 is: 380,575.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,632.08 : 677,091.44 = 275,771.48 : x
  2. Step 2: Convert to fraction form
    490,632.08/677,091.44 = 275,771.48/x
  3. Step 3: Cross multiply
    490,632.08x = 677,091.44 × 275,771.48
  4. Step 4: Simplify right side
    490,632.08x = 186,722,508,504.13
  5. Step 5: Solve for x
    x = 186,722,508,504.13/490,632.08
  6. Step 6: Final answer
    x = 380,575.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.