Home / 685,124.82-1,027,785.60-211,847.04

Finding the Fourth Proportional to 685,124.82, 1,027,785.60 and 211,847.04

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Solution

The fourth proportional to 685,124.82, 1,027,785.60 and 211,847.04 is: 317,800.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,124.82 : 1,027,785.60 = 211,847.04 : x
  2. Step 2: Convert to fraction form
    685,124.82/1,027,785.60 = 211,847.04/x
  3. Step 3: Cross multiply
    685,124.82x = 1,027,785.60 × 211,847.04
  4. Step 4: Simplify right side
    685,124.82x = 217,733,337,114.62
  5. Step 5: Solve for x
    x = 217,733,337,114.62/685,124.82
  6. Step 6: Final answer
    x = 317,800.98

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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.