Home / 451,042.59-622,202.79-278,905.53

Finding the Fourth Proportional to 451,042.59, 622,202.79 and 278,905.53

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Solution

The fourth proportional to 451,042.59, 622,202.79 and 278,905.53 is: 384,743.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,042.59 : 622,202.79 = 278,905.53 : x
  2. Step 2: Convert to fraction form
    451,042.59/622,202.79 = 278,905.53/x
  3. Step 3: Cross multiply
    451,042.59x = 622,202.79 × 278,905.53
  4. Step 4: Simplify right side
    451,042.59x = 173,535,798,912.43
  5. Step 5: Solve for x
    x = 173,535,798,912.43/451,042.59
  6. Step 6: Final answer
    x = 384,743.71

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1.5x scale

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.