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Finding the Fourth Proportional to 543,908.88, 815,857.24 and 330,735.51

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Solution

The fourth proportional to 543,908.88, 815,857.24 and 330,735.51 is: 496,099.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,908.88 : 815,857.24 = 330,735.51 : x
  2. Step 2: Convert to fraction form
    543,908.88/815,857.24 = 330,735.51/x
  3. Step 3: Cross multiply
    543,908.88x = 815,857.24 × 330,735.51
  4. Step 4: Simplify right side
    543,908.88x = 269,832,960,358.59
  5. Step 5: Solve for x
    x = 269,832,960,358.59/543,908.88
  6. Step 6: Final answer
    x = 496,099.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.