Finding the Fourth Proportional to 1,968,942.36, 2,717,359.58 and 1,243,755.12
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Solution
The fourth proportional to 1,968,942.36, 2,717,359.58 and 1,243,755.12 is: 1,716,520.48
Step by Step Solution
- Step 1: Write the proportion equation
1,968,942.36 : 2,717,359.58 = 1,243,755.12 : x - Step 2: Convert to fraction form
1,968,942.36/2,717,359.58 = 1,243,755.12/x - Step 3: Cross multiply
1,968,942.36x = 2,717,359.58 × 1,243,755.12 - Step 4: Simplify right side
1,968,942.36x = 3,379,729,890,506.05 - Step 5: Solve for x
x = 3,379,729,890,506.05/1,968,942.36 - Step 6: Final answer
x = 1,716,520.48
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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.