Finding the Fourth Proportional to 1,311,716.56, 1,968,696.36 and 513,558.60
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Solution
The fourth proportional to 1,311,716.56, 1,968,696.36 and 513,558.60 is: 770,776.99
Step by Step Solution
- Step 1: Write the proportion equation
1,311,716.56 : 1,968,696.36 = 513,558.60 : x - Step 2: Convert to fraction form
1,311,716.56/1,968,696.36 = 513,558.60/x - Step 3: Cross multiply
1,311,716.56x = 1,968,696.36 × 513,558.60 - Step 4: Simplify right side
1,311,716.56x = 1,011,040,946,466.70 - Step 5: Solve for x
x = 1,011,040,946,466.70/1,311,716.56 - Step 6: Final answer
x = 770,776.99
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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.