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Finding the Fourth Proportional to 548,635.25, 757,099.07 and 306,912.63

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Solution

The fourth proportional to 548,635.25, 757,099.07 and 306,912.63 is: 423,529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,635.25 : 757,099.07 = 306,912.63 : x
  2. Step 2: Convert to fraction form
    548,635.25/757,099.07 = 306,912.63/x
  3. Step 3: Cross multiply
    548,635.25x = 757,099.07 × 306,912.63
  4. Step 4: Simplify right side
    548,635.25x = 232,363,265,209.69
  5. Step 5: Solve for x
    x = 232,363,265,209.69/548,635.25
  6. Step 6: Final answer
    x = 423,529.59

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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.