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Finding the Fourth Proportional to 722,351.77, 996,856.26 and 395,694.86

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Solution

The fourth proportional to 722,351.77, 996,856.26 and 395,694.86 is: 546,064.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,351.77 : 996,856.26 = 395,694.86 : x
  2. Step 2: Convert to fraction form
    722,351.77/996,856.26 = 395,694.86/x
  3. Step 3: Cross multiply
    722,351.77x = 996,856.26 × 395,694.86
  4. Step 4: Simplify right side
    722,351.77x = 394,450,900,732.96
  5. Step 5: Solve for x
    x = 394,450,900,732.96/722,351.77
  6. Step 6: Final answer
    x = 546,064.84

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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.