Home / 1,317,455.55-1,976,183.33-320,183.55

Finding the Fourth Proportional to 1,317,455.55, 1,976,183.33 and 320,183.55

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Solution

The fourth proportional to 1,317,455.55, 1,976,183.33 and 320,183.55 is: 480,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,455.55 : 1,976,183.33 = 320,183.55 : x
  2. Step 2: Convert to fraction form
    1,317,455.55/1,976,183.33 = 320,183.55/x
  3. Step 3: Cross multiply
    1,317,455.55x = 1,976,183.33 × 320,183.55
  4. Step 4: Simplify right side
    1,317,455.55x = 632,741,392,449.30
  5. Step 5: Solve for x
    x = 632,741,392,449.30/1,317,455.55
  6. Step 6: Final answer
    x = 480,275.33

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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.