Home / 764,371.68-1,146,583.40-203,406.72

Finding the Fourth Proportional to 764,371.68, 1,146,583.40 and 203,406.72

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Solution

The fourth proportional to 764,371.68, 1,146,583.40 and 203,406.72 is: 305,116.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,371.68 : 1,146,583.40 = 203,406.72 : x
  2. Step 2: Convert to fraction form
    764,371.68/1,146,583.40 = 203,406.72/x
  3. Step 3: Cross multiply
    764,371.68x = 1,146,583.40 × 203,406.72
  4. Step 4: Simplify right side
    764,371.68x = 233,222,768,600.45
  5. Step 5: Solve for x
    x = 233,222,768,600.45/764,371.68
  6. Step 6: Final answer
    x = 305,116.97

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Double scale
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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.