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Finding the Fourth Proportional to 655,640.40, 982,920.60 and 295,834.80

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Solution

The fourth proportional to 655,640.40, 982,920.60 and 295,834.80 is: 443,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,640.40 : 982,920.60 = 295,834.80 : x
  2. Step 2: Convert to fraction form
    655,640.40/982,920.60 = 295,834.80/x
  3. Step 3: Cross multiply
    655,640.40x = 982,920.60 × 295,834.80
  4. Step 4: Simplify right side
    655,640.40x = 290,782,119,116.88
  5. Step 5: Solve for x
    x = 290,782,119,116.88/655,640.40
  6. Step 6: Final answer
    x = 443,508.54

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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.