Finding the Fourth Proportional to 820,641.42, 1,131,129.40 and 548,609.94
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Solution
The fourth proportional to 820,641.42, 1,131,129.40 and 548,609.94 is: 756,175.37
Step by Step Solution
- Step 1: Write the proportion equation
820,641.42 : 1,131,129.40 = 548,609.94 : x - Step 2: Convert to fraction form
820,641.42/1,131,129.40 = 548,609.94/x - Step 3: Cross multiply
820,641.42x = 1,131,129.40 × 548,609.94 - Step 4: Simplify right side
820,641.42x = 620,548,832,266.24 - Step 5: Solve for x
x = 620,548,832,266.24/820,641.42 - Step 6: Final answer
x = 756,175.37
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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.