Home / 378,837.20-567,564.60-308,334.80

Finding the Fourth Proportional to 378,837.20, 567,564.60 and 308,334.80

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Solution

The fourth proportional to 378,837.20, 567,564.60 and 308,334.80 is: 461,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,837.20 : 567,564.60 = 308,334.80 : x
  2. Step 2: Convert to fraction form
    378,837.20/567,564.60 = 308,334.80/x
  3. Step 3: Cross multiply
    378,837.20x = 567,564.60 × 308,334.80
  4. Step 4: Simplify right side
    378,837.20x = 174,999,917,428.08
  5. Step 5: Solve for x
    x = 174,999,917,428.08/378,837.20
  6. Step 6: Final answer
    x = 461,939.63

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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.