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Finding the Fourth Proportional to 558,409.14, 770,604.03 and 303,759.72

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Solution

The fourth proportional to 558,409.14, 770,604.03 and 303,759.72 is: 419,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,409.14 : 770,604.03 = 303,759.72 : x
  2. Step 2: Convert to fraction form
    558,409.14/770,604.03 = 303,759.72/x
  3. Step 3: Cross multiply
    558,409.14x = 770,604.03 × 303,759.72
  4. Step 4: Simplify right side
    558,409.14x = 234,078,464,383.67
  5. Step 5: Solve for x
    x = 234,078,464,383.67/558,409.14
  6. Step 6: Final answer
    x = 419,188.10

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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.