Home / 484,096.78-667,943.31-280,142.56

Finding the Fourth Proportional to 484,096.78, 667,943.31 and 280,142.56

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Solution

The fourth proportional to 484,096.78, 667,943.31 and 280,142.56 is: 386,532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,096.78 : 667,943.31 = 280,142.56 : x
  2. Step 2: Convert to fraction form
    484,096.78/667,943.31 = 280,142.56/x
  3. Step 3: Cross multiply
    484,096.78x = 667,943.31 × 280,142.56
  4. Step 4: Simplify right side
    484,096.78x = 187,119,348,798.27
  5. Step 5: Solve for x
    x = 187,119,348,798.27/484,096.78
  6. Step 6: Final answer
    x = 386,532.93

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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.