Home / 741,128.54-1,111,420.50-254,672.73

Finding the Fourth Proportional to 741,128.54, 1,111,420.50 and 254,672.73

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Solution

The fourth proportional to 741,128.54, 1,111,420.50 and 254,672.73 is: 381,915.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,128.54 : 1,111,420.50 = 254,672.73 : x
  2. Step 2: Convert to fraction form
    741,128.54/1,111,420.50 = 254,672.73/x
  3. Step 3: Cross multiply
    741,128.54x = 1,111,420.50 × 254,672.73
  4. Step 4: Simplify right side
    741,128.54x = 283,048,492,912.97
  5. Step 5: Solve for x
    x = 283,048,492,912.97/741,128.54
  6. Step 6: Final answer
    x = 381,915.52

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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.