Home / 685,711.26-1,028,634.57-236,372.94

Finding the Fourth Proportional to 685,711.26, 1,028,634.57 and 236,372.94

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Solution

The fourth proportional to 685,711.26, 1,028,634.57 and 236,372.94 is: 354,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,711.26 : 1,028,634.57 = 236,372.94 : x
  2. Step 2: Convert to fraction form
    685,711.26/1,028,634.57 = 236,372.94/x
  3. Step 3: Cross multiply
    685,711.26x = 1,028,634.57 × 236,372.94
  4. Step 4: Simplify right side
    685,711.26x = 243,141,377,496.54
  5. Step 5: Solve for x
    x = 243,141,377,496.54/685,711.26
  6. Step 6: Final answer
    x = 354,582.74

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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.