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Finding the Fourth Proportional to 618,508.58, 927,787.37 and 294,218.78

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Solution

The fourth proportional to 618,508.58, 927,787.37 and 294,218.78 is: 441,339.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,508.58 : 927,787.37 = 294,218.78 : x
  2. Step 2: Convert to fraction form
    618,508.58/927,787.37 = 294,218.78/x
  3. Step 3: Cross multiply
    618,508.58x = 927,787.37 × 294,218.78
  4. Step 4: Simplify right side
    618,508.58x = 272,972,461,990.78
  5. Step 5: Solve for x
    x = 272,972,461,990.78/618,508.58
  6. Step 6: Final answer
    x = 441,339.82

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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.