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Finding the Fourth Proportional to 539,044.65, 809,092.83 and 445,230.56

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Solution

The fourth proportional to 539,044.65, 809,092.83 and 445,230.56 is: 668,280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,044.65 : 809,092.83 = 445,230.56 : x
  2. Step 2: Convert to fraction form
    539,044.65/809,092.83 = 445,230.56/x
  3. Step 3: Cross multiply
    539,044.65x = 809,092.83 × 445,230.56
  4. Step 4: Simplify right side
    539,044.65x = 360,232,849,747.42
  5. Step 5: Solve for x
    x = 360,232,849,747.42/539,044.65
  6. Step 6: Final answer
    x = 668,280.17

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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.