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Finding the Fourth Proportional to 618,004.28, 926,773.14 and 285,347

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Solution

The fourth proportional to 618,004.28, 926,773.14 and 285,347 is: 427,912.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,004.28 : 926,773.14 = 285,347 : x
  2. Step 2: Convert to fraction form
    618,004.28/926,773.14 = 285,347/x
  3. Step 3: Cross multiply
    618,004.28x = 926,773.14 × 285,347
  4. Step 4: Simplify right side
    618,004.28x = 264,451,935,179.58
  5. Step 5: Solve for x
    x = 264,451,935,179.58/618,004.28
  6. Step 6: Final answer
    x = 427,912.79

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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.