Home / 766,612.80-1,149,919.20-367,047.90

Finding the Fourth Proportional to 766,612.80, 1,149,919.20 and 367,047.90

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Solution

The fourth proportional to 766,612.80, 1,149,919.20 and 367,047.90 is: 550,571.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,612.80 : 1,149,919.20 = 367,047.90 : x
  2. Step 2: Convert to fraction form
    766,612.80/1,149,919.20 = 367,047.90/x
  3. Step 3: Cross multiply
    766,612.80x = 1,149,919.20 × 367,047.90
  4. Step 4: Simplify right side
    766,612.80x = 422,075,427,529.68
  5. Step 5: Solve for x
    x = 422,075,427,529.68/766,612.80
  6. Step 6: Final answer
    x = 550,571.85

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Double scale
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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.