Home / 1,343,626.20-2,015,439.30-445,206.60

Finding the Fourth Proportional to 1,343,626.20, 2,015,439.30 and 445,206.60

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Solution

The fourth proportional to 1,343,626.20, 2,015,439.30 and 445,206.60 is: 667,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,626.20 : 2,015,439.30 = 445,206.60 : x
  2. Step 2: Convert to fraction form
    1,343,626.20/2,015,439.30 = 445,206.60/x
  3. Step 3: Cross multiply
    1,343,626.20x = 2,015,439.30 × 445,206.60
  4. Step 4: Simplify right side
    1,343,626.20x = 897,286,878,259.38
  5. Step 5: Solve for x
    x = 897,286,878,259.38/1,343,626.20
  6. Step 6: Final answer
    x = 667,809.90

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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.