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Finding the Fourth Proportional to 528,286.20, 792,429.20 and 247,803.44

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Solution

The fourth proportional to 528,286.20, 792,429.20 and 247,803.44 is: 371,705.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,286.20 : 792,429.20 = 247,803.44 : x
  2. Step 2: Convert to fraction form
    528,286.20/792,429.20 = 247,803.44/x
  3. Step 3: Cross multiply
    528,286.20x = 792,429.20 × 247,803.44
  4. Step 4: Simplify right side
    528,286.20x = 196,366,681,716.45
  5. Step 5: Solve for x
    x = 196,366,681,716.45/528,286.20
  6. Step 6: Final answer
    x = 371,705.11

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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.