Home / 908,674.78-1,253,979.77-500,791.33

Finding the Fourth Proportional to 908,674.78, 1,253,979.77 and 500,791.33

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Solution

The fourth proportional to 908,674.78, 1,253,979.77 and 500,791.33 is: 691,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,674.78 : 1,253,979.77 = 500,791.33 : x
  2. Step 2: Convert to fraction form
    908,674.78/1,253,979.77 = 500,791.33/x
  3. Step 3: Cross multiply
    908,674.78x = 1,253,979.77 × 500,791.33
  4. Step 4: Simplify right side
    908,674.78x = 627,982,196,811.39
  5. Step 5: Solve for x
    x = 627,982,196,811.39/908,674.78
  6. Step 6: Final answer
    x = 691,096.76

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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.