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Finding the Fourth Proportional to 618,493.44, 926,947.36 and 538,197.74

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Solution

The fourth proportional to 618,493.44, 926,947.36 and 538,197.74 is: 806,606.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,493.44 : 926,947.36 = 538,197.74 : x
  2. Step 2: Convert to fraction form
    618,493.44/926,947.36 = 538,197.74/x
  3. Step 3: Cross multiply
    618,493.44x = 926,947.36 × 538,197.74
  4. Step 4: Simplify right side
    618,493.44x = 498,880,974,250.97
  5. Step 5: Solve for x
    x = 498,880,974,250.97/618,493.44
  6. Step 6: Final answer
    x = 806,606.73

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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.