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Finding the Fourth Proportional to 978,799.12, 1,468,195.70 and 268,827.79

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Solution

The fourth proportional to 978,799.12, 1,468,195.70 and 268,827.79 is: 403,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,799.12 : 1,468,195.70 = 268,827.79 : x
  2. Step 2: Convert to fraction form
    978,799.12/1,468,195.70 = 268,827.79/x
  3. Step 3: Cross multiply
    978,799.12x = 1,468,195.70 × 268,827.79
  4. Step 4: Simplify right side
    978,799.12x = 394,691,797,977.53
  5. Step 5: Solve for x
    x = 394,691,797,977.53/978,799.12
  6. Step 6: Final answer
    x = 403,240.86

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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.