Home / 764,374.68-1,146,587.90-203,409.72

Finding the Fourth Proportional to 764,374.68, 1,146,587.90 and 203,409.72

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Solution

The fourth proportional to 764,374.68, 1,146,587.90 and 203,409.72 is: 305,121.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,374.68 : 1,146,587.90 = 203,409.72 : x
  2. Step 2: Convert to fraction form
    764,374.68/1,146,587.90 = 203,409.72/x
  3. Step 3: Cross multiply
    764,374.68x = 1,146,587.90 × 203,409.72
  4. Step 4: Simplify right side
    764,374.68x = 233,227,123,694.39
  5. Step 5: Solve for x
    x = 233,227,123,694.39/764,374.68
  6. Step 6: Final answer
    x = 305,121.47

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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.