Home / 809,997.40-1,213,683.90-691,899.40

Finding the Fourth Proportional to 809,997.40, 1,213,683.90 and 691,899.40

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Solution

The fourth proportional to 809,997.40, 1,213,683.90 and 691,899.40 is: 1,036,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,997.40 : 1,213,683.90 = 691,899.40 : x
  2. Step 2: Convert to fraction form
    809,997.40/1,213,683.90 = 691,899.40/x
  3. Step 3: Cross multiply
    809,997.40x = 1,213,683.90 × 691,899.40
  4. Step 4: Simplify right side
    809,997.40x = 839,747,162,199.66
  5. Step 5: Solve for x
    x = 839,747,162,199.66/809,997.40
  6. Step 6: Final answer
    x = 1,036,728.22

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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.