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Finding the Fourth Proportional to 965,911.80, 1,449,523.80 and 539,446.80

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Solution

The fourth proportional to 965,911.80, 1,449,523.80 and 539,446.80 is: 809,536.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,911.80 : 1,449,523.80 = 539,446.80 : x
  2. Step 2: Convert to fraction form
    965,911.80/1,449,523.80 = 539,446.80/x
  3. Step 3: Cross multiply
    965,911.80x = 1,449,523.80 × 539,446.80
  4. Step 4: Simplify right side
    965,911.80x = 781,940,975,433.84
  5. Step 5: Solve for x
    x = 781,940,975,433.84/965,911.80
  6. Step 6: Final answer
    x = 809,536.62

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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.