Home / 620,436.24-930,657.96-221,092.38

Finding the Fourth Proportional to 620,436.24, 930,657.96 and 221,092.38

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Solution

The fourth proportional to 620,436.24, 930,657.96 and 221,092.38 is: 331,639.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,436.24 : 930,657.96 = 221,092.38 : x
  2. Step 2: Convert to fraction form
    620,436.24/930,657.96 = 221,092.38/x
  3. Step 3: Cross multiply
    620,436.24x = 930,657.96 × 221,092.38
  4. Step 4: Simplify right side
    620,436.24x = 205,761,383,342.35
  5. Step 5: Solve for x
    x = 205,761,383,342.35/620,436.24
  6. Step 6: Final answer
    x = 331,639.85

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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.