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Finding the Fourth Proportional to 553,791.94, 764,233.28 and 299,143.13

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Solution

The fourth proportional to 553,791.94, 764,233.28 and 299,143.13 is: 412,817.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,791.94 : 764,233.28 = 299,143.13 : x
  2. Step 2: Convert to fraction form
    553,791.94/764,233.28 = 299,143.13/x
  3. Step 3: Cross multiply
    553,791.94x = 764,233.28 × 299,143.13
  4. Step 4: Simplify right side
    553,791.94x = 228,615,131,234.27
  5. Step 5: Solve for x
    x = 228,615,131,234.27/553,791.94
  6. Step 6: Final answer
    x = 412,817.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.