Home / 815,560.26-1,223,340.39-254,642.82

Finding the Fourth Proportional to 815,560.26, 1,223,340.39 and 254,642.82

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Solution

The fourth proportional to 815,560.26, 1,223,340.39 and 254,642.82 is: 381,964.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,560.26 : 1,223,340.39 = 254,642.82 : x
  2. Step 2: Convert to fraction form
    815,560.26/1,223,340.39 = 254,642.82/x
  3. Step 3: Cross multiply
    815,560.26x = 1,223,340.39 × 254,642.82
  4. Step 4: Simplify right side
    815,560.26x = 311,514,846,729.50
  5. Step 5: Solve for x
    x = 311,514,846,729.50/815,560.26
  6. Step 6: Final answer
    x = 381,964.23

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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.