Home / 693,136.40-1,040,093.40-293,709.20

Finding the Fourth Proportional to 693,136.40, 1,040,093.40 and 293,709.20

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Solution

The fourth proportional to 693,136.40, 1,040,093.40 and 293,709.20 is: 440,728.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,136.40 : 1,040,093.40 = 293,709.20 : x
  2. Step 2: Convert to fraction form
    693,136.40/1,040,093.40 = 293,709.20/x
  3. Step 3: Cross multiply
    693,136.40x = 1,040,093.40 × 293,709.20
  4. Step 4: Simplify right side
    693,136.40x = 305,485,000,439.28
  5. Step 5: Solve for x
    x = 305,485,000,439.28/693,136.40
  6. Step 6: Final answer
    x = 440,728.55

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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.