Home / 685,052.70-1,027,677.44-211,774.96

Finding the Fourth Proportional to 685,052.70, 1,027,677.44 and 211,774.96

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Solution

The fourth proportional to 685,052.70, 1,027,677.44 and 211,774.96 is: 317,692.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,052.70 : 1,027,677.44 = 211,774.96 : x
  2. Step 2: Convert to fraction form
    685,052.70/1,027,677.44 = 211,774.96/x
  3. Step 3: Cross multiply
    685,052.70x = 1,027,677.44 × 211,774.96
  4. Step 4: Simplify right side
    685,052.70x = 217,636,348,748.90
  5. Step 5: Solve for x
    x = 217,636,348,748.90/685,052.70
  6. Step 6: Final answer
    x = 317,692.86

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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.