Home / 789,609.40-1,184,414.31-221,074.26

Finding the Fourth Proportional to 789,609.40, 1,184,414.31 and 221,074.26

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Solution

The fourth proportional to 789,609.40, 1,184,414.31 and 221,074.26 is: 331,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,609.40 : 1,184,414.31 = 221,074.26 : x
  2. Step 2: Convert to fraction form
    789,609.40/1,184,414.31 = 221,074.26/x
  3. Step 3: Cross multiply
    789,609.40x = 1,184,414.31 × 221,074.26
  4. Step 4: Simplify right side
    789,609.40x = 261,843,517,116.66
  5. Step 5: Solve for x
    x = 261,843,517,116.66/789,609.40
  6. Step 6: Final answer
    x = 331,611.45

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Double scale
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Similar ratio
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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.