Home / 809,010.80-1,213,516.20-494,082.80

Finding the Fourth Proportional to 809,010.80, 1,213,516.20 and 494,082.80

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Solution

The fourth proportional to 809,010.80, 1,213,516.20 and 494,082.80 is: 741,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,010.80 : 1,213,516.20 = 494,082.80 : x
  2. Step 2: Convert to fraction form
    809,010.80/1,213,516.20 = 494,082.80/x
  3. Step 3: Cross multiply
    809,010.80x = 1,213,516.20 × 494,082.80
  4. Step 4: Simplify right side
    809,010.80x = 599,577,481,941.36
  5. Step 5: Solve for x
    x = 599,577,481,941.36/809,010.80
  6. Step 6: Final answer
    x = 741,124.20

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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.