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Finding the Fourth Proportional to 620,958.21, 930,876.06 and 221,504.04

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Solution

The fourth proportional to 620,958.21, 930,876.06 and 221,504.04 is: 332,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,958.21 : 930,876.06 = 221,504.04 : x
  2. Step 2: Convert to fraction form
    620,958.21/930,876.06 = 221,504.04/x
  3. Step 3: Cross multiply
    620,958.21x = 930,876.06 × 221,504.04
  4. Step 4: Simplify right side
    620,958.21x = 206,192,808,029.28
  5. Step 5: Solve for x
    x = 206,192,808,029.28/620,958.21
  6. Step 6: Final answer
    x = 332,055.85

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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.