Home / 494,721.10-682,715.35-279,856.60

Finding the Fourth Proportional to 494,721.10, 682,715.35 and 279,856.60

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Solution

The fourth proportional to 494,721.10, 682,715.35 and 279,856.60 is: 386,202.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,721.10 : 682,715.35 = 279,856.60 : x
  2. Step 2: Convert to fraction form
    494,721.10/682,715.35 = 279,856.60/x
  3. Step 3: Cross multiply
    494,721.10x = 682,715.35 × 279,856.60
  4. Step 4: Simplify right side
    494,721.10x = 191,062,393,205.23
  5. Step 5: Solve for x
    x = 191,062,393,205.23/494,721.10
  6. Step 6: Final answer
    x = 386,202.24

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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.