Home / 681,170.40-1,022,216.40-381,650.40

Finding the Fourth Proportional to 681,170.40, 1,022,216.40 and 381,650.40

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Solution

The fourth proportional to 681,170.40, 1,022,216.40 and 381,650.40 is: 572,733.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,170.40 : 1,022,216.40 = 381,650.40 : x
  2. Step 2: Convert to fraction form
    681,170.40/1,022,216.40 = 381,650.40/x
  3. Step 3: Cross multiply
    681,170.40x = 1,022,216.40 × 381,650.40
  4. Step 4: Simplify right side
    681,170.40x = 390,129,297,946.56
  5. Step 5: Solve for x
    x = 390,129,297,946.56/681,170.40
  6. Step 6: Final answer
    x = 572,733.78

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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.