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Finding the Fourth Proportional to 303,608.73, 454,803.96 and 278,806.53

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Solution

The fourth proportional to 303,608.73, 454,803.96 and 278,806.53 is: 417,650.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,608.73 : 454,803.96 = 278,806.53 : x
  2. Step 2: Convert to fraction form
    303,608.73/454,803.96 = 278,806.53/x
  3. Step 3: Cross multiply
    303,608.73x = 454,803.96 × 278,806.53
  4. Step 4: Simplify right side
    303,608.73x = 126,802,313,917.86
  5. Step 5: Solve for x
    x = 126,802,313,917.86/303,608.73
  6. Step 6: Final answer
    x = 417,650.42

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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.