Home / 682,393.20-1,023,589.80-303,313.20

Finding the Fourth Proportional to 682,393.20, 1,023,589.80 and 303,313.20

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Solution

The fourth proportional to 682,393.20, 1,023,589.80 and 303,313.20 is: 454,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,393.20 : 1,023,589.80 = 303,313.20 : x
  2. Step 2: Convert to fraction form
    682,393.20/1,023,589.80 = 303,313.20/x
  3. Step 3: Cross multiply
    682,393.20x = 1,023,589.80 × 303,313.20
  4. Step 4: Simplify right side
    682,393.20x = 310,468,297,725.36
  5. Step 5: Solve for x
    x = 310,468,297,725.36/682,393.20
  6. Step 6: Final answer
    x = 454,969.80

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Double scale
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Similar ratio
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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.