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Finding the Fourth Proportional to 978,939.62, 1,468,234.26 and 622,896.02

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Solution

The fourth proportional to 978,939.62, 1,468,234.26 and 622,896.02 is: 934,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,939.62 : 1,468,234.26 = 622,896.02 : x
  2. Step 2: Convert to fraction form
    978,939.62/1,468,234.26 = 622,896.02/x
  3. Step 3: Cross multiply
    978,939.62x = 1,468,234.26 × 622,896.02
  4. Step 4: Simplify right side
    978,939.62x = 914,557,269,640.47
  5. Step 5: Solve for x
    x = 914,557,269,640.47/978,939.62
  6. Step 6: Final answer
    x = 934,232.57

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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.