Home / 831,815.39-1,247,723.21-200,729.21

Finding the Fourth Proportional to 831,815.39, 1,247,723.21 and 200,729.21

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Solution

The fourth proportional to 831,815.39, 1,247,723.21 and 200,729.21 is: 301,093.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,815.39 : 1,247,723.21 = 200,729.21 : x
  2. Step 2: Convert to fraction form
    831,815.39/1,247,723.21 = 200,729.21/x
  3. Step 3: Cross multiply
    831,815.39x = 1,247,723.21 × 200,729.21
  4. Step 4: Simplify right side
    831,815.39x = 250,454,486,999.70
  5. Step 5: Solve for x
    x = 250,454,486,999.70/831,815.39
  6. Step 6: Final answer
    x = 301,093.84

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1.5x scale

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.