Home / 669,704.40-1,004,556.60-445,366.80

Finding the Fourth Proportional to 669,704.40, 1,004,556.60 and 445,366.80

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Solution

The fourth proportional to 669,704.40, 1,004,556.60 and 445,366.80 is: 668,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,704.40 : 1,004,556.60 = 445,366.80 : x
  2. Step 2: Convert to fraction form
    669,704.40/1,004,556.60 = 445,366.80/x
  3. Step 3: Cross multiply
    669,704.40x = 1,004,556.60 × 445,366.80
  4. Step 4: Simplify right side
    669,704.40x = 447,396,158,360.88
  5. Step 5: Solve for x
    x = 447,396,158,360.88/669,704.40
  6. Step 6: Final answer
    x = 668,050.20

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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.