Finding the Fourth Proportional to 2,431,458.39, 3,355,422.99 and 1,328,912.07
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Solution
The fourth proportional to 2,431,458.39, 3,355,422.99 and 1,328,912.07 is: 1,833,904.35
Step by Step Solution
- Step 1: Write the proportion equation
2,431,458.39 : 3,355,422.99 = 1,328,912.07 : x - Step 2: Convert to fraction form
2,431,458.39/3,355,422.99 = 1,328,912.07/x - Step 3: Cross multiply
2,431,458.39x = 3,355,422.99 × 1,328,912.07 - Step 4: Simplify right side
2,431,458.39x = 4,459,062,111,366.49 - Step 5: Solve for x
x = 4,459,062,111,366.49/2,431,458.39 - Step 6: Final answer
x = 1,833,904.35
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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.