Home / 872,498.20-1,308,833.70-303,791.80

Finding the Fourth Proportional to 872,498.20, 1,308,833.70 and 303,791.80

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Solution

The fourth proportional to 872,498.20, 1,308,833.70 and 303,791.80 is: 455,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,498.20 : 1,308,833.70 = 303,791.80 : x
  2. Step 2: Convert to fraction form
    872,498.20/1,308,833.70 = 303,791.80/x
  3. Step 3: Cross multiply
    872,498.20x = 1,308,833.70 × 303,791.80
  4. Step 4: Simplify right side
    872,498.20x = 397,612,945,623.66
  5. Step 5: Solve for x
    x = 397,612,945,623.66/872,498.20
  6. Step 6: Final answer
    x = 455,717.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.