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Finding the Fourth Proportional to 978,938.87, 1,468,233.14 and 622,895.27

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Solution

The fourth proportional to 978,938.87, 1,468,233.14 and 622,895.27 is: 934,231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,938.87 : 1,468,233.14 = 622,895.27 : x
  2. Step 2: Convert to fraction form
    978,938.87/1,468,233.14 = 622,895.27/x
  3. Step 3: Cross multiply
    978,938.87x = 1,468,233.14 × 622,895.27
  4. Step 4: Simplify right side
    978,938.87x = 914,555,467,707.61
  5. Step 5: Solve for x
    x = 914,555,467,707.61/978,938.87
  6. Step 6: Final answer
    x = 934,231.44

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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.