Home / 814,103.60-1,220,936.70-281,787.80

Finding the Fourth Proportional to 814,103.60, 1,220,936.70 and 281,787.80

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Solution

The fourth proportional to 814,103.60, 1,220,936.70 and 281,787.80 is: 422,606.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,103.60 : 1,220,936.70 = 281,787.80 : x
  2. Step 2: Convert to fraction form
    814,103.60/1,220,936.70 = 281,787.80/x
  3. Step 3: Cross multiply
    814,103.60x = 1,220,936.70 × 281,787.80
  4. Step 4: Simplify right side
    814,103.60x = 344,045,066,632.26
  5. Step 5: Solve for x
    x = 344,045,066,632.26/814,103.60
  6. Step 6: Final answer
    x = 422,606.00

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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.