Home / 775,015.20-1,160,449.20-493,005.60

Finding the Fourth Proportional to 775,015.20, 1,160,449.20 and 493,005.60

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Solution

The fourth proportional to 775,015.20, 1,160,449.20 and 493,005.60 is: 738,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,015.20 : 1,160,449.20 = 493,005.60 : x
  2. Step 2: Convert to fraction form
    775,015.20/1,160,449.20 = 493,005.60/x
  3. Step 3: Cross multiply
    775,015.20x = 1,160,449.20 × 493,005.60
  4. Step 4: Simplify right side
    775,015.20x = 572,107,954,115.52
  5. Step 5: Solve for x
    x = 572,107,954,115.52/775,015.20
  6. Step 6: Final answer
    x = 738,189.33

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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.