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Finding the Fourth Proportional to 644,473.08, 966,680.46 and 223,781.76

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Solution

The fourth proportional to 644,473.08, 966,680.46 and 223,781.76 is: 335,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,473.08 : 966,680.46 = 223,781.76 : x
  2. Step 2: Convert to fraction form
    644,473.08/966,680.46 = 223,781.76/x
  3. Step 3: Cross multiply
    644,473.08x = 966,680.46 × 223,781.76
  4. Step 4: Simplify right side
    644,473.08x = 216,325,454,696.41
  5. Step 5: Solve for x
    x = 216,325,454,696.41/644,473.08
  6. Step 6: Final answer
    x = 335,662.51

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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.