Home / 558,418.72-770,623.74-303,770.56

Finding the Fourth Proportional to 558,418.72, 770,623.74 and 303,770.56

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Solution

The fourth proportional to 558,418.72, 770,623.74 and 303,770.56 is: 419,206.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,418.72 : 770,623.74 = 303,770.56 : x
  2. Step 2: Convert to fraction form
    558,418.72/770,623.74 = 303,770.56/x
  3. Step 3: Cross multiply
    558,418.72x = 770,623.74 × 303,770.56
  4. Step 4: Simplify right side
    558,418.72x = 234,092,805,049.09
  5. Step 5: Solve for x
    x = 234,092,805,049.09/558,418.72
  6. Step 6: Final answer
    x = 419,206.59

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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.