Home / 1,366,286.40-2,049,429.60-419,704.20

Finding the Fourth Proportional to 1,366,286.40, 2,049,429.60 and 419,704.20

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Solution

The fourth proportional to 1,366,286.40, 2,049,429.60 and 419,704.20 is: 629,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366,286.40 : 2,049,429.60 = 419,704.20 : x
  2. Step 2: Convert to fraction form
    1,366,286.40/2,049,429.60 = 419,704.20/x
  3. Step 3: Cross multiply
    1,366,286.40x = 2,049,429.60 × 419,704.20
  4. Step 4: Simplify right side
    1,366,286.40x = 860,154,210,724.32
  5. Step 5: Solve for x
    x = 860,154,210,724.32/1,366,286.40
  6. Step 6: Final answer
    x = 629,556.30

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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.