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Finding the Fourth Proportional to 694,840.68, 959,478.56 and 437,147.15

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Solution

The fourth proportional to 694,840.68, 959,478.56 and 437,147.15 is: 603,639.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,840.68 : 959,478.56 = 437,147.15 : x
  2. Step 2: Convert to fraction form
    694,840.68/959,478.56 = 437,147.15/x
  3. Step 3: Cross multiply
    694,840.68x = 959,478.56 × 437,147.15
  4. Step 4: Simplify right side
    694,840.68x = 419,433,311,006.98
  5. Step 5: Solve for x
    x = 419,433,311,006.98/694,840.68
  6. Step 6: Final answer
    x = 603,639.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.