Finding the Fourth Proportional to 1,620,613.98, 2,431,184.79 and 756,912.60
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Solution
The fourth proportional to 1,620,613.98, 2,431,184.79 and 756,912.60 is: 1,135,492.12
Step by Step Solution
- Step 1: Write the proportion equation
1,620,613.98 : 2,431,184.79 = 756,912.60 : x - Step 2: Convert to fraction form
1,620,613.98/2,431,184.79 = 756,912.60/x - Step 3: Cross multiply
1,620,613.98x = 2,431,184.79 × 756,912.60 - Step 4: Simplify right side
1,620,613.98x = 1,840,194,400,479.35 - Step 5: Solve for x
x = 1,840,194,400,479.35/1,620,613.98 - Step 6: Final answer
x = 1,135,492.12
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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.