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Finding the Fourth Proportional to 699,850.81, 965,732.51 and 389,729.96

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Solution

The fourth proportional to 699,850.81, 965,732.51 and 389,729.96 is: 537,793.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,850.81 : 965,732.51 = 389,729.96 : x
  2. Step 2: Convert to fraction form
    699,850.81/965,732.51 = 389,729.96/x
  3. Step 3: Cross multiply
    699,850.81x = 965,732.51 × 389,729.96
  4. Step 4: Simplify right side
    699,850.81x = 376,374,892,958.68
  5. Step 5: Solve for x
    x = 376,374,892,958.68/699,850.81
  6. Step 6: Final answer
    x = 537,793.04

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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.