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Finding the Fourth Proportional to 880,471.52, 1,321,299.13 and 311,850.61

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Solution

The fourth proportional to 880,471.52, 1,321,299.13 and 311,850.61 is: 467,985.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,471.52 : 1,321,299.13 = 311,850.61 : x
  2. Step 2: Convert to fraction form
    880,471.52/1,321,299.13 = 311,850.61/x
  3. Step 3: Cross multiply
    880,471.52x = 1,321,299.13 × 311,850.61
  4. Step 4: Simplify right side
    880,471.52x = 412,047,939,682.97
  5. Step 5: Solve for x
    x = 412,047,939,682.97/880,471.52
  6. Step 6: Final answer
    x = 467,985.54

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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.