Home / 427,629.36-641,254.40-227,912.48

Finding the Fourth Proportional to 427,629.36, 641,254.40 and 227,912.48

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Solution

The fourth proportional to 427,629.36, 641,254.40 and 227,912.48 is: 341,767.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,629.36 : 641,254.40 = 227,912.48 : x
  2. Step 2: Convert to fraction form
    427,629.36/641,254.40 = 227,912.48/x
  3. Step 3: Cross multiply
    427,629.36x = 641,254.40 × 227,912.48
  4. Step 4: Simplify right side
    427,629.36x = 146,149,880,614.91
  5. Step 5: Solve for x
    x = 146,149,880,614.91/427,629.36
  6. Step 6: Final answer
    x = 341,767.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.