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Finding the Fourth Proportional to 558,616.50, 770,884.28 and 303,963.30

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Solution

The fourth proportional to 558,616.50, 770,884.28 and 303,963.30 is: 419,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,616.50 : 770,884.28 = 303,963.30 : x
  2. Step 2: Convert to fraction form
    558,616.50/770,884.28 = 303,963.30/x
  3. Step 3: Cross multiply
    558,616.50x = 770,884.28 × 303,963.30
  4. Step 4: Simplify right side
    558,616.50x = 234,320,529,666.92
  5. Step 5: Solve for x
    x = 234,320,529,666.92/558,616.50
  6. Step 6: Final answer
    x = 419,465.82

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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.