Home / 493,318.03-681,432.31-396,885

Finding the Fourth Proportional to 493,318.03, 681,432.31 and 396,885

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Solution

The fourth proportional to 493,318.03, 681,432.31 and 396,885 is: 548,227.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,318.03 : 681,432.31 = 396,885 : x
  2. Step 2: Convert to fraction form
    493,318.03/681,432.31 = 396,885/x
  3. Step 3: Cross multiply
    493,318.03x = 681,432.31 × 396,885
  4. Step 4: Simplify right side
    493,318.03x = 270,450,262,354.35
  5. Step 5: Solve for x
    x = 270,450,262,354.35/493,318.03
  6. Step 6: Final answer
    x = 548,227.00

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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.