Home / 789,067.80-1,183,601.70-290,626.20

Finding the Fourth Proportional to 789,067.80, 1,183,601.70 and 290,626.20

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Solution

The fourth proportional to 789,067.80, 1,183,601.70 and 290,626.20 is: 435,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,067.80 : 1,183,601.70 = 290,626.20 : x
  2. Step 2: Convert to fraction form
    789,067.80/1,183,601.70 = 290,626.20/x
  3. Step 3: Cross multiply
    789,067.80x = 1,183,601.70 × 290,626.20
  4. Step 4: Simplify right side
    789,067.80x = 343,985,664,384.54
  5. Step 5: Solve for x
    x = 343,985,664,384.54/789,067.80
  6. Step 6: Final answer
    x = 435,939.30

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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.