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Finding the Fourth Proportional to 722,474.82, 996,972.48 and 395,722.67

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Solution

The fourth proportional to 722,474.82, 996,972.48 and 395,722.67 is: 546,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,474.82 : 996,972.48 = 395,722.67 : x
  2. Step 2: Convert to fraction form
    722,474.82/996,972.48 = 395,722.67/x
  3. Step 3: Cross multiply
    722,474.82x = 996,972.48 × 395,722.67
  4. Step 4: Simplify right side
    722,474.82x = 394,524,614,417.44
  5. Step 5: Solve for x
    x = 394,524,614,417.44/722,474.82
  6. Step 6: Final answer
    x = 546,073.86

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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.