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Finding the Fourth Proportional to 722,083.58, 996,490.44 and 395,410.38

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Solution

The fourth proportional to 722,083.58, 996,490.44 and 395,410.38 is: 545,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,083.58 : 996,490.44 = 395,410.38 : x
  2. Step 2: Convert to fraction form
    722,083.58/996,490.44 = 395,410.38/x
  3. Step 3: Cross multiply
    722,083.58x = 996,490.44 × 395,410.38
  4. Step 4: Simplify right side
    722,083.58x = 394,022,663,546.77
  5. Step 5: Solve for x
    x = 394,022,663,546.77/722,083.58
  6. Step 6: Final answer
    x = 545,674.60

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1.5x scale

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.