Home / 663,422.31-994,849.14-308,399.31

Finding the Fourth Proportional to 663,422.31, 994,849.14 and 308,399.31

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Solution

The fourth proportional to 663,422.31, 994,849.14 and 308,399.31 is: 462,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,422.31 : 994,849.14 = 308,399.31 : x
  2. Step 2: Convert to fraction form
    663,422.31/994,849.14 = 308,399.31/x
  3. Step 3: Cross multiply
    663,422.31x = 994,849.14 × 308,399.31
  4. Step 4: Simplify right side
    663,422.31x = 306,810,788,330.09
  5. Step 5: Solve for x
    x = 306,810,788,330.09/663,422.31
  6. Step 6: Final answer
    x = 462,466.79

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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.