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Finding the Fourth Proportional to 664,326.97, 994,992.26 and 308,592.38

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Solution

The fourth proportional to 664,326.97, 994,992.26 and 308,592.38 is: 462,192.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,326.97 : 994,992.26 = 308,592.38 : x
  2. Step 2: Convert to fraction form
    664,326.97/994,992.26 = 308,592.38/x
  3. Step 3: Cross multiply
    664,326.97x = 994,992.26 × 308,592.38
  4. Step 4: Simplify right side
    664,326.97x = 307,047,030,539.50
  5. Step 5: Solve for x
    x = 307,047,030,539.50/664,326.97
  6. Step 6: Final answer
    x = 462,192.63

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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.