Home / 915,857.70-1,372,816.96-308,067.41

Finding the Fourth Proportional to 915,857.70, 1,372,816.96 and 308,067.41

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Solution

The fourth proportional to 915,857.70, 1,372,816.96 and 308,067.41 is: 461,774.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,857.70 : 1,372,816.96 = 308,067.41 : x
  2. Step 2: Convert to fraction form
    915,857.70/1,372,816.96 = 308,067.41/x
  3. Step 3: Cross multiply
    915,857.70x = 1,372,816.96 × 308,067.41
  4. Step 4: Simplify right side
    915,857.70x = 422,920,157,637.02
  5. Step 5: Solve for x
    x = 422,920,157,637.02/915,857.70
  6. Step 6: Final answer
    x = 461,774.97

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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.