Home / 694,785.80-1,042,236.30-221,457.80

Finding the Fourth Proportional to 694,785.80, 1,042,236.30 and 221,457.80

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Solution

The fourth proportional to 694,785.80, 1,042,236.30 and 221,457.80 is: 332,205.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,785.80 : 1,042,236.30 = 221,457.80 : x
  2. Step 2: Convert to fraction form
    694,785.80/1,042,236.30 = 221,457.80/x
  3. Step 3: Cross multiply
    694,785.80x = 1,042,236.30 × 221,457.80
  4. Step 4: Simplify right side
    694,785.80x = 230,811,358,078.14
  5. Step 5: Solve for x
    x = 230,811,358,078.14/694,785.80
  6. Step 6: Final answer
    x = 332,205.06

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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.