Home / 389,447.25-584,669.11-330,656.46

Finding the Fourth Proportional to 389,447.25, 584,669.11 and 330,656.46

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Solution

The fourth proportional to 389,447.25, 584,669.11 and 330,656.46 is: 496,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,447.25 : 584,669.11 = 330,656.46 : x
  2. Step 2: Convert to fraction form
    389,447.25/584,669.11 = 330,656.46/x
  3. Step 3: Cross multiply
    389,447.25x = 584,669.11 × 330,656.46
  4. Step 4: Simplify right side
    389,447.25x = 193,324,618,183.95
  5. Step 5: Solve for x
    x = 193,324,618,183.95/389,447.25
  6. Step 6: Final answer
    x = 496,407.71

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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.