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Finding the Fourth Proportional to 529,716.09, 794,489.01 and 145,375.15

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Solution

The fourth proportional to 529,716.09, 794,489.01 and 145,375.15 is: 218,039.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,716.09 : 794,489.01 = 145,375.15 : x
  2. Step 2: Convert to fraction form
    529,716.09/794,489.01 = 145,375.15/x
  3. Step 3: Cross multiply
    529,716.09x = 794,489.01 × 145,375.15
  4. Step 4: Simplify right side
    529,716.09x = 115,498,957,015.88
  5. Step 5: Solve for x
    x = 115,498,957,015.88/529,716.09
  6. Step 6: Final answer
    x = 218,039.36

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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.