Home / 814,112.10-1,220,949.45-281,796.30

Finding the Fourth Proportional to 814,112.10, 1,220,949.45 and 281,796.30

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Solution

The fourth proportional to 814,112.10, 1,220,949.45 and 281,796.30 is: 422,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,112.10 : 1,220,949.45 = 281,796.30 : x
  2. Step 2: Convert to fraction form
    814,112.10/1,220,949.45 = 281,796.30/x
  3. Step 3: Cross multiply
    814,112.10x = 1,220,949.45 × 281,796.30
  4. Step 4: Simplify right side
    814,112.10x = 344,059,037,497.04
  5. Step 5: Solve for x
    x = 344,059,037,497.04/814,112.10
  6. Step 6: Final answer
    x = 422,618.75

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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.