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Finding the Fourth Proportional to 539,545.50, 809,241.45 and 219,836.82

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Solution

The fourth proportional to 539,545.50, 809,241.45 and 219,836.82 is: 329,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,545.50 : 809,241.45 = 219,836.82 : x
  2. Step 2: Convert to fraction form
    539,545.50/809,241.45 = 219,836.82/x
  3. Step 3: Cross multiply
    539,545.50x = 809,241.45 × 219,836.82
  4. Step 4: Simplify right side
    539,545.50x = 177,901,066,980.19
  5. Step 5: Solve for x
    x = 177,901,066,980.19/539,545.50
  6. Step 6: Final answer
    x = 329,723.94

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1.5x scale

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.