Finding the Fourth Proportional to 1,179,816.44, 1,628,271.60 and 721,199.44
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Solution
The fourth proportional to 1,179,816.44, 1,628,271.60 and 721,199.44 is: 995,331.58
Step by Step Solution
- Step 1: Write the proportion equation
1,179,816.44 : 1,628,271.60 = 721,199.44 : x - Step 2: Convert to fraction form
1,179,816.44/1,628,271.60 = 721,199.44/x - Step 3: Cross multiply
1,179,816.44x = 1,628,271.60 × 721,199.44 - Step 4: Simplify right side
1,179,816.44x = 1,174,308,566,087.90 - Step 5: Solve for x
x = 1,174,308,566,087.90/1,179,816.44 - Step 6: Final answer
x = 995,331.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.