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Finding the Fourth Proportional to 558,479.46, 770,705 and 303,832.47

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Solution

The fourth proportional to 558,479.46, 770,705 and 303,832.47 is: 419,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,479.46 : 770,705 = 303,832.47 : x
  2. Step 2: Convert to fraction form
    558,479.46/770,705 = 303,832.47/x
  3. Step 3: Cross multiply
    558,479.46x = 770,705 × 303,832.47
  4. Step 4: Simplify right side
    558,479.46x = 234,165,203,791.35
  5. Step 5: Solve for x
    x = 234,165,203,791.35/558,479.46
  6. Step 6: Final answer
    x = 419,290.63

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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.