Home / 681,660.10-1,022,490.18-208,341.46

Finding the Fourth Proportional to 681,660.10, 1,022,490.18 and 208,341.46

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Solution

The fourth proportional to 681,660.10, 1,022,490.18 and 208,341.46 is: 312,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,660.10 : 1,022,490.18 = 208,341.46 : x
  2. Step 2: Convert to fraction form
    681,660.10/1,022,490.18 = 208,341.46/x
  3. Step 3: Cross multiply
    681,660.10x = 1,022,490.18 × 208,341.46
  4. Step 4: Simplify right side
    681,660.10x = 213,027,096,936.86
  5. Step 5: Solve for x
    x = 213,027,096,936.86/681,660.10
  6. Step 6: Final answer
    x = 312,512.20

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Similar ratio
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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.