Home / 786,626.40-1,180,231.20-313,651.20

Finding the Fourth Proportional to 786,626.40, 1,180,231.20 and 313,651.20

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Solution

The fourth proportional to 786,626.40, 1,180,231.20 and 313,651.20 is: 470,593.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,626.40 : 1,180,231.20 = 313,651.20 : x
  2. Step 2: Convert to fraction form
    786,626.40/1,180,231.20 = 313,651.20/x
  3. Step 3: Cross multiply
    786,626.40x = 1,180,231.20 × 313,651.20
  4. Step 4: Simplify right side
    786,626.40x = 370,180,932,157.44
  5. Step 5: Solve for x
    x = 370,180,932,157.44/786,626.40
  6. Step 6: Final answer
    x = 470,593.07

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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.