Finding the Fourth Proportional to 1,678,377.12, 2,517,583.26 and 1,343,546.21
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Solution
The fourth proportional to 1,678,377.12, 2,517,583.26 and 1,343,546.21 is: 2,015,333.39
Step by Step Solution
- Step 1: Write the proportion equation
1,678,377.12 : 2,517,583.26 = 1,343,546.21 : x - Step 2: Convert to fraction form
1,678,377.12/2,517,583.26 = 1,343,546.21/x - Step 3: Cross multiply
1,678,377.12x = 2,517,583.26 × 1,343,546.21 - Step 4: Simplify right side
1,678,377.12x = 3,382,489,447,332.44 - Step 5: Solve for x
x = 3,382,489,447,332.44/1,678,377.12 - Step 6: Final answer
x = 2,015,333.39
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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.