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Finding the Fourth Proportional to 558,517.37, 770,761.86 and 303,868.76

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Solution

The fourth proportional to 558,517.37, 770,761.86 and 303,868.76 is: 419,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,517.37 : 770,761.86 = 303,868.76 : x
  2. Step 2: Convert to fraction form
    558,517.37/770,761.86 = 303,868.76/x
  3. Step 3: Cross multiply
    558,517.37x = 770,761.86 × 303,868.76
  4. Step 4: Simplify right side
    558,517.37x = 234,210,450,653.49
  5. Step 5: Solve for x
    x = 234,210,450,653.49/558,517.37
  6. Step 6: Final answer
    x = 419,343.18

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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.