Home / 394,096.03-543,285.66-280,721.95

Finding the Fourth Proportional to 394,096.03, 543,285.66 and 280,721.95

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Solution

The fourth proportional to 394,096.03, 543,285.66 and 280,721.95 is: 386,992.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,096.03 : 543,285.66 = 280,721.95 : x
  2. Step 2: Convert to fraction form
    394,096.03/543,285.66 = 280,721.95/x
  3. Step 3: Cross multiply
    394,096.03x = 543,285.66 × 280,721.95
  4. Step 4: Simplify right side
    394,096.03x = 152,512,210,264.12
  5. Step 5: Solve for x
    x = 152,512,210,264.12/394,096.03
  6. Step 6: Final answer
    x = 386,992.50

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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.