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Finding the Fourth Proportional to 787,953.56, 1,181,956.26 and 255,479

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Solution

The fourth proportional to 787,953.56, 1,181,956.26 and 255,479 is: 383,226.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,953.56 : 1,181,956.26 = 255,479 : x
  2. Step 2: Convert to fraction form
    787,953.56/1,181,956.26 = 255,479/x
  3. Step 3: Cross multiply
    787,953.56x = 1,181,956.26 × 255,479
  4. Step 4: Simplify right side
    787,953.56x = 301,965,003,348.54
  5. Step 5: Solve for x
    x = 301,965,003,348.54/787,953.56
  6. Step 6: Final answer
    x = 383,226.90

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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.