Home / 665,777.32-998,917.62-399,723.34

Finding the Fourth Proportional to 665,777.32, 998,917.62 and 399,723.34

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Solution

The fourth proportional to 665,777.32, 998,917.62 and 399,723.34 is: 599,736.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,777.32 : 998,917.62 = 399,723.34 : x
  2. Step 2: Convert to fraction form
    665,777.32/998,917.62 = 399,723.34/x
  3. Step 3: Cross multiply
    665,777.32x = 998,917.62 × 399,723.34
  4. Step 4: Simplify right side
    665,777.32x = 399,290,687,451.25
  5. Step 5: Solve for x
    x = 399,290,687,451.25/665,777.32
  6. Step 6: Final answer
    x = 599,736.09

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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.