Finding the Fourth Proportional to 1,942,390.44, 2,679,546.24 and 1,297,969.20
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Solution
The fourth proportional to 1,942,390.44, 2,679,546.24 and 1,297,969.20 is: 1,790,560.96
Step by Step Solution
- Step 1: Write the proportion equation
1,942,390.44 : 2,679,546.24 = 1,297,969.20 : x - Step 2: Convert to fraction form
1,942,390.44/2,679,546.24 = 1,297,969.20/x - Step 3: Cross multiply
1,942,390.44x = 2,679,546.24 × 1,297,969.20 - Step 4: Simplify right side
1,942,390.44x = 3,477,968,489,495.81 - Step 5: Solve for x
x = 3,477,968,489,495.81/1,942,390.44 - Step 6: Final answer
x = 1,790,560.96
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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.