Home / 481,093.02-663,919.20-311,622.12

Finding the Fourth Proportional to 481,093.02, 663,919.20 and 311,622.12

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Solution

The fourth proportional to 481,093.02, 663,919.20 and 311,622.12 is: 430,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,093.02 : 663,919.20 = 311,622.12 : x
  2. Step 2: Convert to fraction form
    481,093.02/663,919.20 = 311,622.12/x
  3. Step 3: Cross multiply
    481,093.02x = 663,919.20 × 311,622.12
  4. Step 4: Simplify right side
    481,093.02x = 206,891,908,612.70
  5. Step 5: Solve for x
    x = 206,891,908,612.70/481,093.02
  6. Step 6: Final answer
    x = 430,045.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.