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Finding the Fourth Proportional to 978,942.24, 1,468,238.20 and 622,898.64

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Solution

The fourth proportional to 978,942.24, 1,468,238.20 and 622,898.64 is: 934,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,942.24 : 1,468,238.20 = 622,898.64 : x
  2. Step 2: Convert to fraction form
    978,942.24/1,468,238.20 = 622,898.64/x
  3. Step 3: Cross multiply
    978,942.24x = 1,468,238.20 × 622,898.64
  4. Step 4: Simplify right side
    978,942.24x = 914,563,576,418.80
  5. Step 5: Solve for x
    x = 914,563,576,418.80/978,942.24
  6. Step 6: Final answer
    x = 934,236.50

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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.