Home / 764,785.27-1,146,144.52-291,212.29

Finding the Fourth Proportional to 764,785.27, 1,146,144.52 and 291,212.29

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Solution

The fourth proportional to 764,785.27, 1,146,144.52 and 291,212.29 is: 436,424.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,785.27 : 1,146,144.52 = 291,212.29 : x
  2. Step 2: Convert to fraction form
    764,785.27/1,146,144.52 = 291,212.29/x
  3. Step 3: Cross multiply
    764,785.27x = 1,146,144.52 × 291,212.29
  4. Step 4: Simplify right side
    764,785.27x = 333,771,370,340.15
  5. Step 5: Solve for x
    x = 333,771,370,340.15/764,785.27
  6. Step 6: Final answer
    x = 436,424.95

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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.