Finding the Fourth Proportional to 1,678,396.50, 2,316,157.74 and 914,455.44
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Solution
The fourth proportional to 1,678,396.50, 2,316,157.74 and 914,455.44 is: 1,261,932.47
Step by Step Solution
- Step 1: Write the proportion equation
1,678,396.50 : 2,316,157.74 = 914,455.44 : x - Step 2: Convert to fraction form
1,678,396.50/2,316,157.74 = 914,455.44/x - Step 3: Cross multiply
1,678,396.50x = 2,316,157.74 × 914,455.44 - Step 4: Simplify right side
1,678,396.50x = 2,118,023,045,241.11 - Step 5: Solve for x
x = 2,118,023,045,241.11/1,678,396.50 - Step 6: Final answer
x = 1,261,932.47
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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.