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Finding the Fourth Proportional to 618,760.94, 927,604.98 and 239,420.66

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Solution

The fourth proportional to 618,760.94, 927,604.98 and 239,420.66 is: 358,923.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,760.94 : 927,604.98 = 239,420.66 : x
  2. Step 2: Convert to fraction form
    618,760.94/927,604.98 = 239,420.66/x
  3. Step 3: Cross multiply
    618,760.94x = 927,604.98 × 239,420.66
  4. Step 4: Simplify right side
    618,760.94x = 222,087,791,892.86
  5. Step 5: Solve for x
    x = 222,087,791,892.86/618,760.94
  6. Step 6: Final answer
    x = 358,923.42

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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.