Home / 815,104.22-1,222,263.07-341,662.46

Finding the Fourth Proportional to 815,104.22, 1,222,263.07 and 341,662.46

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Solution

The fourth proportional to 815,104.22, 1,222,263.07 and 341,662.46 is: 512,328.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,104.22 : 1,222,263.07 = 341,662.46 : x
  2. Step 2: Convert to fraction form
    815,104.22/1,222,263.07 = 341,662.46/x
  3. Step 3: Cross multiply
    815,104.22x = 1,222,263.07 × 341,662.46
  4. Step 4: Simplify right side
    815,104.22x = 417,601,400,297.88
  5. Step 5: Solve for x
    x = 417,601,400,297.88/815,104.22
  6. Step 6: Final answer
    x = 512,328.84

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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.