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Finding the Fourth Proportional to 565,841.28, 848,234.61 and 388,431.84

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Solution

The fourth proportional to 565,841.28, 848,234.61 and 388,431.84 is: 582,285.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,841.28 : 848,234.61 = 388,431.84 : x
  2. Step 2: Convert to fraction form
    565,841.28/848,234.61 = 388,431.84/x
  3. Step 3: Cross multiply
    565,841.28x = 848,234.61 × 388,431.84
  4. Step 4: Simplify right side
    565,841.28x = 329,481,330,313.98
  5. Step 5: Solve for x
    x = 329,481,330,313.98/565,841.28
  6. Step 6: Final answer
    x = 582,285.78

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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.