Home / 815,422.20-1,222,695.90-341,572.20

Finding the Fourth Proportional to 815,422.20, 1,222,695.90 and 341,572.20

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Solution

The fourth proportional to 815,422.20, 1,222,695.90 and 341,572.20 is: 512,175.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,422.20 : 1,222,695.90 = 341,572.20 : x
  2. Step 2: Convert to fraction form
    815,422.20/1,222,695.90 = 341,572.20/x
  3. Step 3: Cross multiply
    815,422.20x = 1,222,695.90 × 341,572.20
  4. Step 4: Simplify right side
    815,422.20x = 417,638,928,493.98
  5. Step 5: Solve for x
    x = 417,638,928,493.98/815,422.20
  6. Step 6: Final answer
    x = 512,175.08

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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.