Finding the Fourth Proportional to 4,278,243.23, 5,903,965.93 and 2,318,174.78
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Solution
The fourth proportional to 4,278,243.23, 5,903,965.93 and 2,318,174.78 is: 3,199,075.92
Step by Step Solution
- Step 1: Write the proportion equation
4,278,243.23 : 5,903,965.93 = 2,318,174.78 : x - Step 2: Convert to fraction form
4,278,243.23/5,903,965.93 = 2,318,174.78/x - Step 3: Cross multiply
4,278,243.23x = 5,903,965.93 × 2,318,174.78 - Step 4: Simplify right side
4,278,243.23x = 13,686,424,918,104.02 - Step 5: Solve for x
x = 13,686,424,918,104.02/4,278,243.23 - Step 6: Final answer
x = 3,199,075.92
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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.