Home / 729,136.40-1,093,704.60-408,959.60

Finding the Fourth Proportional to 729,136.40, 1,093,704.60 and 408,959.60

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Solution

The fourth proportional to 729,136.40, 1,093,704.60 and 408,959.60 is: 613,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,136.40 : 1,093,704.60 = 408,959.60 : x
  2. Step 2: Convert to fraction form
    729,136.40/1,093,704.60 = 408,959.60/x
  3. Step 3: Cross multiply
    729,136.40x = 1,093,704.60 × 408,959.60
  4. Step 4: Simplify right side
    729,136.40x = 447,280,995,734.16
  5. Step 5: Solve for x
    x = 447,280,995,734.16/729,136.40
  6. Step 6: Final answer
    x = 613,439.40

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Similar ratio
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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.