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Finding the Fourth Proportional to 458,558.06, 687,836.39 and 300,749.54

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Solution

The fourth proportional to 458,558.06, 687,836.39 and 300,749.54 is: 451,123.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,558.06 : 687,836.39 = 300,749.54 : x
  2. Step 2: Convert to fraction form
    458,558.06/687,836.39 = 300,749.54/x
  3. Step 3: Cross multiply
    458,558.06x = 687,836.39 × 300,749.54
  4. Step 4: Simplify right side
    458,558.06x = 206,866,472,944.83
  5. Step 5: Solve for x
    x = 206,866,472,944.83/458,558.06
  6. Step 6: Final answer
    x = 451,123.85

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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.