Home / 664,399.08-996,757.37-215,120.45

Finding the Fourth Proportional to 664,399.08, 996,757.37 and 215,120.45

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Solution

The fourth proportional to 664,399.08, 996,757.37 and 215,120.45 is: 322,732.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,399.08 : 996,757.37 = 215,120.45 : x
  2. Step 2: Convert to fraction form
    664,399.08/996,757.37 = 215,120.45/x
  3. Step 3: Cross multiply
    664,399.08x = 996,757.37 × 215,120.45
  4. Step 4: Simplify right side
    664,399.08x = 214,422,887,915.83
  5. Step 5: Solve for x
    x = 214,422,887,915.83/664,399.08
  6. Step 6: Final answer
    x = 322,732.07

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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.