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Finding the Fourth Proportional to 539,431.71, 809,278.98 and 179,601.90

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Solution

The fourth proportional to 539,431.71, 809,278.98 and 179,601.90 is: 269,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,431.71 : 809,278.98 = 179,601.90 : x
  2. Step 2: Convert to fraction form
    539,431.71/809,278.98 = 179,601.90/x
  3. Step 3: Cross multiply
    539,431.71x = 809,278.98 × 179,601.90
  4. Step 4: Simplify right side
    539,431.71x = 145,348,042,438.06
  5. Step 5: Solve for x
    x = 145,348,042,438.06/539,431.71
  6. Step 6: Final answer
    x = 269,446.60

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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.