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Finding the Fourth Proportional to 558,519.87, 770,765.31 and 303,871.26

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Solution

The fourth proportional to 558,519.87, 770,765.31 and 303,871.26 is: 419,346.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,519.87 : 770,765.31 = 303,871.26 : x
  2. Step 2: Convert to fraction form
    558,519.87/770,765.31 = 303,871.26/x
  3. Step 3: Cross multiply
    558,519.87x = 770,765.31 × 303,871.26
  4. Step 4: Simplify right side
    558,519.87x = 234,213,425,913.99
  5. Step 5: Solve for x
    x = 234,213,425,913.99/558,519.87
  6. Step 6: Final answer
    x = 419,346.63

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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.