Home / 420,912.67-580,821.39-237,181.16

Finding the Fourth Proportional to 420,912.67, 580,821.39 and 237,181.16

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Solution

The fourth proportional to 420,912.67, 580,821.39 and 237,181.16 is: 327,288.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,912.67 : 580,821.39 = 237,181.16 : x
  2. Step 2: Convert to fraction form
    420,912.67/580,821.39 = 237,181.16/x
  3. Step 3: Cross multiply
    420,912.67x = 580,821.39 × 237,181.16
  4. Step 4: Simplify right side
    420,912.67x = 137,759,891,033.01
  5. Step 5: Solve for x
    x = 137,759,891,033.01/420,912.67
  6. Step 6: Final answer
    x = 327,288.53

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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.