Home / 461,944.08-693,135.42-320,007.78

Finding the Fourth Proportional to 461,944.08, 693,135.42 and 320,007.78

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Solution

The fourth proportional to 461,944.08, 693,135.42 and 320,007.78 is: 480,163.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,944.08 : 693,135.42 = 320,007.78 : x
  2. Step 2: Convert to fraction form
    461,944.08/693,135.42 = 320,007.78/x
  3. Step 3: Cross multiply
    461,944.08x = 693,135.42 × 320,007.78
  4. Step 4: Simplify right side
    461,944.08x = 221,808,726,993.57
  5. Step 5: Solve for x
    x = 221,808,726,993.57/461,944.08
  6. Step 6: Final answer
    x = 480,163.59

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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.