Home / 815,367.96-1,222,909.77-216,389.66

Finding the Fourth Proportional to 815,367.96, 1,222,909.77 and 216,389.66

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Solution

The fourth proportional to 815,367.96, 1,222,909.77 and 216,389.66 is: 324,546.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,367.96 : 1,222,909.77 = 216,389.66 : x
  2. Step 2: Convert to fraction form
    815,367.96/1,222,909.77 = 216,389.66/x
  3. Step 3: Cross multiply
    815,367.96x = 1,222,909.77 × 216,389.66
  4. Step 4: Simplify right side
    815,367.96x = 264,625,023,226.43
  5. Step 5: Solve for x
    x = 264,625,023,226.43/815,367.96
  6. Step 6: Final answer
    x = 324,546.75

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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.