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Finding the Fourth Proportional to 668,361.17, 922,396.75 and 366,613.49

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Solution

The fourth proportional to 668,361.17, 922,396.75 and 366,613.49 is: 505,958.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,361.17 : 922,396.75 = 366,613.49 : x
  2. Step 2: Convert to fraction form
    668,361.17/922,396.75 = 366,613.49/x
  3. Step 3: Cross multiply
    668,361.17x = 922,396.75 × 366,613.49
  4. Step 4: Simplify right side
    668,361.17x = 338,163,093,071.62
  5. Step 5: Solve for x
    x = 338,163,093,071.62/668,361.17
  6. Step 6: Final answer
    x = 505,958.61

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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.