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Finding the Fourth Proportional to 539,793.35, 809,301.23 and 303,208.55

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Solution

The fourth proportional to 539,793.35, 809,301.23 and 303,208.55 is: 454,594.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,793.35 : 809,301.23 = 303,208.55 : x
  2. Step 2: Convert to fraction form
    539,793.35/809,301.23 = 303,208.55/x
  3. Step 3: Cross multiply
    539,793.35x = 809,301.23 × 303,208.55
  4. Step 4: Simplify right side
    539,793.35x = 245,387,050,945.47
  5. Step 5: Solve for x
    x = 245,387,050,945.47/539,793.35
  6. Step 6: Final answer
    x = 454,594.43

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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.