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Finding the Fourth Proportional to 523,249.44, 721,997.32 and 308,360.32

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Solution

The fourth proportional to 523,249.44, 721,997.32 and 308,360.32 is: 425,486.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,249.44 : 721,997.32 = 308,360.32 : x
  2. Step 2: Convert to fraction form
    523,249.44/721,997.32 = 308,360.32/x
  3. Step 3: Cross multiply
    523,249.44x = 721,997.32 × 308,360.32
  4. Step 4: Simplify right side
    523,249.44x = 222,635,324,634.34
  5. Step 5: Solve for x
    x = 222,635,324,634.34/523,249.44
  6. Step 6: Final answer
    x = 425,486.03

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1.5x scale

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.