Home / 420,974.24-580,942.32-229,998.56

Finding the Fourth Proportional to 420,974.24, 580,942.32 and 229,998.56

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Solution

The fourth proportional to 420,974.24, 580,942.32 and 229,998.56 is: 317,396.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,974.24 : 580,942.32 = 229,998.56 : x
  2. Step 2: Convert to fraction form
    420,974.24/580,942.32 = 229,998.56/x
  3. Step 3: Cross multiply
    420,974.24x = 580,942.32 × 229,998.56
  4. Step 4: Simplify right side
    420,974.24x = 133,615,897,043.06
  5. Step 5: Solve for x
    x = 133,615,897,043.06/420,974.24
  6. Step 6: Final answer
    x = 317,396.85

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1.5x scale

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.