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Finding the Fourth Proportional to 665,083.97, 917,715.17 and 374,654.01

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Solution

The fourth proportional to 665,083.97, 917,715.17 and 374,654.01 is: 516,965.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,083.97 : 917,715.17 = 374,654.01 : x
  2. Step 2: Convert to fraction form
    665,083.97/917,715.17 = 374,654.01/x
  3. Step 3: Cross multiply
    665,083.97x = 917,715.17 × 374,654.01
  4. Step 4: Simplify right side
    665,083.97x = 343,825,669,414.97
  5. Step 5: Solve for x
    x = 343,825,669,414.97/665,083.97
  6. Step 6: Final answer
    x = 516,965.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.