Home / 764,979.36-1,147,624.56-266,382.24

Finding the Fourth Proportional to 764,979.36, 1,147,624.56 and 266,382.24

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Solution

The fourth proportional to 764,979.36, 1,147,624.56 and 266,382.24 is: 399,627.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,979.36 : 1,147,624.56 = 266,382.24 : x
  2. Step 2: Convert to fraction form
    764,979.36/1,147,624.56 = 266,382.24/x
  3. Step 3: Cross multiply
    764,979.36x = 1,147,624.56 × 266,382.24
  4. Step 4: Simplify right side
    764,979.36x = 305,706,800,971.81
  5. Step 5: Solve for x
    x = 305,706,800,971.81/764,979.36
  6. Step 6: Final answer
    x = 399,627.52

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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.