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Finding the Fourth Proportional to 558,409.64, 770,604.72 and 303,760.22

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Solution

The fourth proportional to 558,409.64, 770,604.72 and 303,760.22 is: 419,188.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,409.64 : 770,604.72 = 303,760.22 : x
  2. Step 2: Convert to fraction form
    558,409.64/770,604.72 = 303,760.22/x
  3. Step 3: Cross multiply
    558,409.64x = 770,604.72 × 303,760.22
  4. Step 4: Simplify right side
    558,409.64x = 234,079,059,280.24
  5. Step 5: Solve for x
    x = 234,079,059,280.24/558,409.64
  6. Step 6: Final answer
    x = 419,188.79

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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.