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Finding the Fourth Proportional to 978,837.71, 1,468,253.72 and 268,866.43

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Solution

The fourth proportional to 978,837.71, 1,468,253.72 and 268,866.43 is: 403,298.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,837.71 : 1,468,253.72 = 268,866.43 : x
  2. Step 2: Convert to fraction form
    978,837.71/1,468,253.72 = 268,866.43/x
  3. Step 3: Cross multiply
    978,837.71x = 1,468,253.72 × 268,866.43
  4. Step 4: Simplify right side
    978,837.71x = 394,764,133,032.15
  5. Step 5: Solve for x
    x = 394,764,133,032.15/978,837.71
  6. Step 6: Final answer
    x = 403,298.86

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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.