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Finding the Fourth Proportional to 558,591, 770,849.10 and 303,937.80

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Solution

The fourth proportional to 558,591, 770,849.10 and 303,937.80 is: 419,430.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,591 : 770,849.10 = 303,937.80 : x
  2. Step 2: Convert to fraction form
    558,591/770,849.10 = 303,937.80/x
  3. Step 3: Cross multiply
    558,591x = 770,849.10 × 303,937.80
  4. Step 4: Simplify right side
    558,591x = 234,290,179,585.98
  5. Step 5: Solve for x
    x = 234,290,179,585.98/558,591
  6. Step 6: Final answer
    x = 419,430.64

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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.