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Finding the Fourth Proportional to 501,331.68, 691,833.96 and 274,975.56

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Solution

The fourth proportional to 501,331.68, 691,833.96 and 274,975.56 is: 379,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,331.68 : 691,833.96 = 274,975.56 : x
  2. Step 2: Convert to fraction form
    501,331.68/691,833.96 = 274,975.56/x
  3. Step 3: Cross multiply
    501,331.68x = 691,833.96 × 274,975.56
  4. Step 4: Simplify right side
    501,331.68x = 190,237,430,578.02
  5. Step 5: Solve for x
    x = 190,237,430,578.02/501,331.68
  6. Step 6: Final answer
    x = 379,464.21

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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.