Finding the Fourth Proportional to 2,178,531.79, 3,006,163.53 and 1,260,578.23
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Solution
The fourth proportional to 2,178,531.79, 3,006,163.53 and 1,260,578.23 is: 1,739,476.25
Step by Step Solution
- Step 1: Write the proportion equation
2,178,531.79 : 3,006,163.53 = 1,260,578.23 : x - Step 2: Convert to fraction form
2,178,531.79/3,006,163.53 = 1,260,578.23/x - Step 3: Cross multiply
2,178,531.79x = 3,006,163.53 × 1,260,578.23 - Step 4: Simplify right side
2,178,531.79x = 3,789,504,294,222.54 - Step 5: Solve for x
x = 3,789,504,294,222.54/2,178,531.79 - Step 6: Final answer
x = 1,739,476.25
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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.