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Finding the Fourth Proportional to 664,249.90, 996,472.05 and 348,730.60

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Solution

The fourth proportional to 664,249.90, 996,472.05 and 348,730.60 is: 523,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,249.90 : 996,472.05 = 348,730.60 : x
  2. Step 2: Convert to fraction form
    664,249.90/996,472.05 = 348,730.60/x
  3. Step 3: Cross multiply
    664,249.90x = 996,472.05 × 348,730.60
  4. Step 4: Simplify right side
    664,249.90x = 347,500,295,879.73
  5. Step 5: Solve for x
    x = 347,500,295,879.73/664,249.90
  6. Step 6: Final answer
    x = 523,146.93

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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.