Home / 648,299.72-972,414.43-199,020.68

Finding the Fourth Proportional to 648,299.72, 972,414.43 and 199,020.68

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Solution

The fourth proportional to 648,299.72, 972,414.43 and 199,020.68 is: 298,520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,299.72 : 972,414.43 = 199,020.68 : x
  2. Step 2: Convert to fraction form
    648,299.72/972,414.43 = 199,020.68/x
  3. Step 3: Cross multiply
    648,299.72x = 972,414.43 × 199,020.68
  4. Step 4: Simplify right side
    648,299.72x = 193,530,581,100.41
  5. Step 5: Solve for x
    x = 193,530,581,100.41/648,299.72
  6. Step 6: Final answer
    x = 298,520.23

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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.