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Finding the Fourth Proportional to 766,896.60, 1,149,480.90 and 367,728.60

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Solution

The fourth proportional to 766,896.60, 1,149,480.90 and 367,728.60 is: 551,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,896.60 : 1,149,480.90 = 367,728.60 : x
  2. Step 2: Convert to fraction form
    766,896.60/1,149,480.90 = 367,728.60/x
  3. Step 3: Cross multiply
    766,896.60x = 1,149,480.90 × 367,728.60
  4. Step 4: Simplify right side
    766,896.60x = 422,697,002,083.74
  5. Step 5: Solve for x
    x = 422,697,002,083.74/766,896.60
  6. Step 6: Final answer
    x = 551,178.61

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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.