Home / 815,964.13-1,223,945.97-254,998.63

Finding the Fourth Proportional to 815,964.13, 1,223,945.97 and 254,998.63

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Solution

The fourth proportional to 815,964.13, 1,223,945.97 and 254,998.63 is: 382,497.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,964.13 : 1,223,945.97 = 254,998.63 : x
  2. Step 2: Convert to fraction form
    815,964.13/1,223,945.97 = 254,998.63/x
  3. Step 3: Cross multiply
    815,964.13x = 1,223,945.97 × 254,998.63
  4. Step 4: Simplify right side
    815,964.13x = 312,104,545,544.02
  5. Step 5: Solve for x
    x = 312,104,545,544.02/815,964.13
  6. Step 6: Final answer
    x = 382,497.87

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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.