Home / 589,910.78-813,976.26-331,720.85

Finding the Fourth Proportional to 589,910.78, 813,976.26 and 331,720.85

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Solution

The fourth proportional to 589,910.78, 813,976.26 and 331,720.85 is: 457,718.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,910.78 : 813,976.26 = 331,720.85 : x
  2. Step 2: Convert to fraction form
    589,910.78/813,976.26 = 331,720.85/x
  3. Step 3: Cross multiply
    589,910.78x = 813,976.26 × 331,720.85
  4. Step 4: Simplify right side
    589,910.78x = 270,012,892,777.14
  5. Step 5: Solve for x
    x = 270,012,892,777.14/589,910.78
  6. Step 6: Final answer
    x = 457,718.19

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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.