Home / 420,912.54-580,872.06-229,938.24

Finding the Fourth Proportional to 420,912.54, 580,872.06 and 229,938.24

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Solution

The fourth proportional to 420,912.54, 580,872.06 and 229,938.24 is: 317,321.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,912.54 : 580,872.06 = 229,938.24 : x
  2. Step 2: Convert to fraction form
    420,912.54/580,872.06 = 229,938.24/x
  3. Step 3: Cross multiply
    420,912.54x = 580,872.06 × 229,938.24
  4. Step 4: Simplify right side
    420,912.54x = 133,564,699,141.57
  5. Step 5: Solve for x
    x = 133,564,699,141.57/420,912.54
  6. Step 6: Final answer
    x = 317,321.74

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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.