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Finding the Fourth Proportional to 662,857.44, 994,146.48 and 213,618.48

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Solution

The fourth proportional to 662,857.44, 994,146.48 and 213,618.48 is: 320,382.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,857.44 : 994,146.48 = 213,618.48 : x
  2. Step 2: Convert to fraction form
    662,857.44/994,146.48 = 213,618.48/x
  3. Step 3: Cross multiply
    662,857.44x = 994,146.48 × 213,618.48
  4. Step 4: Simplify right side
    662,857.44x = 212,368,059,954.95
  5. Step 5: Solve for x
    x = 212,368,059,954.95/662,857.44
  6. Step 6: Final answer
    x = 320,382.71

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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.