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Finding the Fourth Proportional to 539,487, 809,269.38 and 207,063

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Solution

The fourth proportional to 539,487, 809,269.38 and 207,063 is: 310,609.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,487 : 809,269.38 = 207,063 : x
  2. Step 2: Convert to fraction form
    539,487/809,269.38 = 207,063/x
  3. Step 3: Cross multiply
    539,487x = 809,269.38 × 207,063
  4. Step 4: Simplify right side
    539,487x = 167,569,745,630.94
  5. Step 5: Solve for x
    x = 167,569,745,630.94/539,487
  6. Step 6: Final answer
    x = 310,609.42

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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.