Home / 493,273.13-681,370.47-396,840.20

Finding the Fourth Proportional to 493,273.13, 681,370.47 and 396,840.20

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Solution

The fourth proportional to 493,273.13, 681,370.47 and 396,840.20 is: 548,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,273.13 : 681,370.47 = 396,840.20 : x
  2. Step 2: Convert to fraction form
    493,273.13/681,370.47 = 396,840.20/x
  3. Step 3: Cross multiply
    493,273.13x = 681,370.47 × 396,840.20
  4. Step 4: Simplify right side
    493,273.13x = 270,395,190,182.04
  5. Step 5: Solve for x
    x = 270,395,190,182.04/493,273.13
  6. Step 6: Final answer
    x = 548,165.25

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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.