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Finding the Fourth Proportional to 548,601.54, 757,099.56 and 306,869.70

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Solution

The fourth proportional to 548,601.54, 757,099.56 and 306,869.70 is: 423,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,601.54 : 757,099.56 = 306,869.70 : x
  2. Step 2: Convert to fraction form
    548,601.54/757,099.56 = 306,869.70/x
  3. Step 3: Cross multiply
    548,601.54x = 757,099.56 × 306,869.70
  4. Step 4: Simplify right side
    548,601.54x = 232,330,914,847.33
  5. Step 5: Solve for x
    x = 232,330,914,847.33/548,601.54
  6. Step 6: Final answer
    x = 423,496.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.