Home / 420,934.30-580,882.01-229,942.78

Finding the Fourth Proportional to 420,934.30, 580,882.01 and 229,942.78

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Solution

The fourth proportional to 420,934.30, 580,882.01 and 229,942.78 is: 317,317.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,934.30 : 580,882.01 = 229,942.78 : x
  2. Step 2: Convert to fraction form
    420,934.30/580,882.01 = 229,942.78/x
  3. Step 3: Cross multiply
    420,934.30x = 580,882.01 × 229,942.78
  4. Step 4: Simplify right side
    420,934.30x = 133,569,624,231.39
  5. Step 5: Solve for x
    x = 133,569,624,231.39/420,934.30
  6. Step 6: Final answer
    x = 317,317.04

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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.