Finding the Fourth Proportional to 4,743,361.29, 7,114,912.74 and 1,331,676.12
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Solution
The fourth proportional to 4,743,361.29, 7,114,912.74 and 1,331,676.12 is: 1,997,477.91
Step by Step Solution
- Step 1: Write the proportion equation
4,743,361.29 : 7,114,912.74 = 1,331,676.12 : x - Step 2: Convert to fraction form
4,743,361.29/7,114,912.74 = 1,331,676.12/x - Step 3: Cross multiply
4,743,361.29x = 7,114,912.74 × 1,331,676.12 - Step 4: Simplify right side
4,743,361.29x = 9,474,759,391,741.77 - Step 5: Solve for x
x = 9,474,759,391,741.77/4,743,361.29 - Step 6: Final answer
x = 1,997,477.91
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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.