Finding the Fourth Proportional to 2,589,963.42, 3,574,193.94 and 1,428,543.03
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Solution
The fourth proportional to 2,589,963.42, 3,574,193.94 and 1,428,543.03 is: 1,971,413.88
Step by Step Solution
- Step 1: Write the proportion equation
2,589,963.42 : 3,574,193.94 = 1,428,543.03 : x - Step 2: Convert to fraction form
2,589,963.42/3,574,193.94 = 1,428,543.03/x - Step 3: Cross multiply
2,589,963.42x = 3,574,193.94 × 1,428,543.03 - Step 4: Simplify right side
2,589,963.42x = 5,105,889,840,855.24 - Step 5: Solve for x
x = 5,105,889,840,855.24/2,589,963.42 - Step 6: Final answer
x = 1,971,413.88
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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.