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Finding the Fourth Proportional to 519,474.43, 777,804.06 and 269,631.55

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Solution

The fourth proportional to 519,474.43, 777,804.06 and 269,631.55 is: 403,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,474.43 : 777,804.06 = 269,631.55 : x
  2. Step 2: Convert to fraction form
    519,474.43/777,804.06 = 269,631.55/x
  3. Step 3: Cross multiply
    519,474.43x = 777,804.06 × 269,631.55
  4. Step 4: Simplify right side
    519,474.43x = 209,720,510,405.07
  5. Step 5: Solve for x
    x = 209,720,510,405.07/519,474.43
  6. Step 6: Final answer
    x = 403,716.72

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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.