Home / 815,958.12-1,223,936.96-254,992.64

Finding the Fourth Proportional to 815,958.12, 1,223,936.96 and 254,992.64

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Solution

The fourth proportional to 815,958.12, 1,223,936.96 and 254,992.64 is: 382,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,958.12 : 1,223,936.96 = 254,992.64 : x
  2. Step 2: Convert to fraction form
    815,958.12/1,223,936.96 = 254,992.64/x
  3. Step 3: Cross multiply
    815,958.12x = 1,223,936.96 × 254,992.64
  4. Step 4: Simplify right side
    815,958.12x = 312,094,916,623.97
  5. Step 5: Solve for x
    x = 312,094,916,623.97/815,958.12
  6. Step 6: Final answer
    x = 382,488.89

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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.