Finding the Fourth Proportional to 3,678,039.12, 5,509,885.28 and 2,075,755.44
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Solution
The fourth proportional to 3,678,039.12, 5,509,885.28 and 2,075,755.44 is: 3,109,584.75
Step by Step Solution
- Step 1: Write the proportion equation
3,678,039.12 : 5,509,885.28 = 2,075,755.44 : x - Step 2: Convert to fraction form
3,678,039.12/5,509,885.28 = 2,075,755.44/x - Step 3: Cross multiply
3,678,039.12x = 5,509,885.28 × 2,075,755.44 - Step 4: Simplify right side
3,678,039.12x = 11,437,174,343,735.92 - Step 5: Solve for x
x = 11,437,174,343,735.92/3,678,039.12 - Step 6: Final answer
x = 3,109,584.75
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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.