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Finding the Fourth Proportional to 503,719.29, 755,578.11 and 345,467.97

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Solution

The fourth proportional to 503,719.29, 755,578.11 and 345,467.97 is: 518,201.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,719.29 : 755,578.11 = 345,467.97 : x
  2. Step 2: Convert to fraction form
    503,719.29/755,578.11 = 345,467.97/x
  3. Step 3: Cross multiply
    503,719.29x = 755,578.11 × 345,467.97
  4. Step 4: Simplify right side
    503,719.29x = 261,028,035,838.14
  5. Step 5: Solve for x
    x = 261,028,035,838.14/503,719.29
  6. Step 6: Final answer
    x = 518,201.39

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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.