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Finding the Fourth Proportional to 529,992, 731,388.96 and 303,768.72

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Solution

The fourth proportional to 529,992, 731,388.96 and 303,768.72 is: 419,200.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,992 : 731,388.96 = 303,768.72 : x
  2. Step 2: Convert to fraction form
    529,992/731,388.96 = 303,768.72/x
  3. Step 3: Cross multiply
    529,992x = 731,388.96 × 303,768.72
  4. Step 4: Simplify right side
    529,992x = 222,173,088,201.33
  5. Step 5: Solve for x
    x = 222,173,088,201.33/529,992
  6. Step 6: Final answer
    x = 419,200.83

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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.