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Finding the Fourth Proportional to 978,717.06, 1,468,072.35 and 268,745.58

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Solution

The fourth proportional to 978,717.06, 1,468,072.35 and 268,745.58 is: 403,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,717.06 : 1,468,072.35 = 268,745.58 : x
  2. Step 2: Convert to fraction form
    978,717.06/1,468,072.35 = 268,745.58/x
  3. Step 3: Cross multiply
    978,717.06x = 1,468,072.35 × 268,745.58
  4. Step 4: Simplify right side
    978,717.06x = 394,537,955,182.71
  5. Step 5: Solve for x
    x = 394,537,955,182.71/978,717.06
  6. Step 6: Final answer
    x = 403,117.48

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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.