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Finding the Fourth Proportional to 978,840.71, 1,468,258.22 and 268,869.44

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Solution

The fourth proportional to 978,840.71, 1,468,258.22 and 268,869.44 is: 403,303.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,840.71 : 1,468,258.22 = 268,869.44 : x
  2. Step 2: Convert to fraction form
    978,840.71/1,468,258.22 = 268,869.44/x
  3. Step 3: Cross multiply
    978,840.71x = 1,468,258.22 × 268,869.44
  4. Step 4: Simplify right side
    978,840.71x = 394,769,756,701.16
  5. Step 5: Solve for x
    x = 394,769,756,701.16/978,840.71
  6. Step 6: Final answer
    x = 403,303.37

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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.