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Finding the Fourth Proportional to 978,855.44, 1,468,280.28 and 268,884.20

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Solution

The fourth proportional to 978,855.44, 1,468,280.28 and 268,884.20 is: 403,325.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,855.44 : 1,468,280.28 = 268,884.20 : x
  2. Step 2: Convert to fraction form
    978,855.44/1,468,280.28 = 268,884.20/x
  3. Step 3: Cross multiply
    978,855.44x = 1,468,280.28 × 268,884.20
  4. Step 4: Simplify right side
    978,855.44x = 394,797,368,463.58
  5. Step 5: Solve for x
    x = 394,797,368,463.58/978,855.44
  6. Step 6: Final answer
    x = 403,325.51

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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.