Home / 880,219.50-1,320,334.71-311,476.78

Finding the Fourth Proportional to 880,219.50, 1,320,334.71 and 311,476.78

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Solution

The fourth proportional to 880,219.50, 1,320,334.71 and 311,476.78 is: 467,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,219.50 : 1,320,334.71 = 311,476.78 : x
  2. Step 2: Convert to fraction form
    880,219.50/1,320,334.71 = 311,476.78/x
  3. Step 3: Cross multiply
    880,219.50x = 1,320,334.71 × 311,476.78
  4. Step 4: Simplify right side
    880,219.50x = 411,253,603,993.03
  5. Step 5: Solve for x
    x = 411,253,603,993.03/880,219.50
  6. Step 6: Final answer
    x = 467,217.10

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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.