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Finding the Fourth Proportional to 978,365.82, 1,467,553.08 and 268,401.90

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Solution

The fourth proportional to 978,365.82, 1,467,553.08 and 268,401.90 is: 402,604.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,365.82 : 1,467,553.08 = 268,401.90 : x
  2. Step 2: Convert to fraction form
    978,365.82/1,467,553.08 = 268,401.90/x
  3. Step 3: Cross multiply
    978,365.82x = 1,467,553.08 × 268,401.90
  4. Step 4: Simplify right side
    978,365.82x = 393,894,035,022.85
  5. Step 5: Solve for x
    x = 393,894,035,022.85/978,365.82
  6. Step 6: Final answer
    x = 402,604.04

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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.