Home / 1,121,403.20-1,682,493.60-490,769.60

Finding the Fourth Proportional to 1,121,403.20, 1,682,493.60 and 490,769.60

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Solution

The fourth proportional to 1,121,403.20, 1,682,493.60 and 490,769.60 is: 736,324.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,403.20 : 1,682,493.60 = 490,769.60 : x
  2. Step 2: Convert to fraction form
    1,121,403.20/1,682,493.60 = 490,769.60/x
  3. Step 3: Cross multiply
    1,121,403.20x = 1,682,493.60 × 490,769.60
  4. Step 4: Simplify right side
    1,121,403.20x = 825,716,711,074.56
  5. Step 5: Solve for x
    x = 825,716,711,074.56/1,121,403.20
  6. Step 6: Final answer
    x = 736,324.55

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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.