Home / 813,099.65-1,220,766.66-414,008.60

Finding the Fourth Proportional to 813,099.65, 1,220,766.66 and 414,008.60

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Solution

The fourth proportional to 813,099.65, 1,220,766.66 and 414,008.60 is: 621,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,099.65 : 1,220,766.66 = 414,008.60 : x
  2. Step 2: Convert to fraction form
    813,099.65/1,220,766.66 = 414,008.60/x
  3. Step 3: Cross multiply
    813,099.65x = 1,220,766.66 × 414,008.60
  4. Step 4: Simplify right side
    813,099.65x = 505,407,889,729.44
  5. Step 5: Solve for x
    x = 505,407,889,729.44/813,099.65
  6. Step 6: Final answer
    x = 621,581.74

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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.