Home / 890,786.54-1,336,383.94-291,781.82

Finding the Fourth Proportional to 890,786.54, 1,336,383.94 and 291,781.82

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Solution

The fourth proportional to 890,786.54, 1,336,383.94 and 291,781.82 is: 437,739.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,786.54 : 1,336,383.94 = 291,781.82 : x
  2. Step 2: Convert to fraction form
    890,786.54/1,336,383.94 = 291,781.82/x
  3. Step 3: Cross multiply
    890,786.54x = 1,336,383.94 × 291,781.82
  4. Step 4: Simplify right side
    890,786.54x = 389,932,538,231.97
  5. Step 5: Solve for x
    x = 389,932,538,231.97/890,786.54
  6. Step 6: Final answer
    x = 437,739.59

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1.5x scale

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.