Home / 620,512.20-930,847.68-221,193.30

Finding the Fourth Proportional to 620,512.20, 930,847.68 and 221,193.30

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Solution

The fourth proportional to 620,512.20, 930,847.68 and 221,193.30 is: 331,818.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,512.20 : 930,847.68 = 221,193.30 : x
  2. Step 2: Convert to fraction form
    620,512.20/930,847.68 = 221,193.30/x
  3. Step 3: Cross multiply
    620,512.20x = 930,847.68 × 221,193.30
  4. Step 4: Simplify right side
    620,512.20x = 205,897,270,136.54
  5. Step 5: Solve for x
    x = 205,897,270,136.54/620,512.20
  6. Step 6: Final answer
    x = 331,818.25

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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.