Finding the Fourth Proportional to 1,620,912.51, 2,433,013.96 and 811,876.62
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Solution
The fourth proportional to 1,620,912.51, 2,433,013.96 and 811,876.62 is: 1,218,638.97
Step by Step Solution
- Step 1: Write the proportion equation
1,620,912.51 : 2,433,013.96 = 811,876.62 : x - Step 2: Convert to fraction form
1,620,912.51/2,433,013.96 = 811,876.62/x - Step 3: Cross multiply
1,620,912.51x = 2,433,013.96 × 811,876.62 - Step 4: Simplify right side
1,620,912.51x = 1,975,307,150,257.62 - Step 5: Solve for x
x = 1,975,307,150,257.62/1,620,912.51 - Step 6: Final answer
x = 1,218,638.97
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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.