Home / 815,212.82-1,222,352.67-341,498.90

Finding the Fourth Proportional to 815,212.82, 1,222,352.67 and 341,498.90

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Solution

The fourth proportional to 815,212.82, 1,222,352.67 and 341,498.90 is: 512,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,212.82 : 1,222,352.67 = 341,498.90 : x
  2. Step 2: Convert to fraction form
    815,212.82/1,222,352.67 = 341,498.90/x
  3. Step 3: Cross multiply
    815,212.82x = 1,222,352.67 × 341,498.90
  4. Step 4: Simplify right side
    815,212.82x = 417,432,092,217.06
  5. Step 5: Solve for x
    x = 417,432,092,217.06/815,212.82
  6. Step 6: Final answer
    x = 512,052.90

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1.5x scale

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.