Home / 764,544.27-1,146,954.71-315,015.09

Finding the Fourth Proportional to 764,544.27, 1,146,954.71 and 315,015.09

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Solution

The fourth proportional to 764,544.27, 1,146,954.71 and 315,015.09 is: 472,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,544.27 : 1,146,954.71 = 315,015.09 : x
  2. Step 2: Convert to fraction form
    764,544.27/1,146,954.71 = 315,015.09/x
  3. Step 3: Cross multiply
    764,544.27x = 1,146,954.71 × 315,015.09
  4. Step 4: Simplify right side
    764,544.27x = 361,308,041,196.57
  5. Step 5: Solve for x
    x = 361,308,041,196.57/764,544.27
  6. Step 6: Final answer
    x = 472,579.62

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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.