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Finding the Fourth Proportional to 481,628.96, 722,233.96 and 256,939.28

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Solution

The fourth proportional to 481,628.96, 722,233.96 and 256,939.28 is: 385,297.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,628.96 : 722,233.96 = 256,939.28 : x
  2. Step 2: Convert to fraction form
    481,628.96/722,233.96 = 256,939.28/x
  3. Step 3: Cross multiply
    481,628.96x = 722,233.96 × 256,939.28
  4. Step 4: Simplify right side
    481,628.96x = 185,570,273,673.95
  5. Step 5: Solve for x
    x = 185,570,273,673.95/481,628.96
  6. Step 6: Final answer
    x = 385,297.17

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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.