Finding the Fourth Proportional to 743,761.44, 1,115,654.58 and 389,467.44
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Solution
The fourth proportional to 743,761.44, 1,115,654.58 and 389,467.44 is: 584,207.66
Step by Step Solution
- Step 1: Write the proportion equation
743,761.44 : 1,115,654.58 = 389,467.44 : x - Step 2: Convert to fraction form
743,761.44/1,115,654.58 = 389,467.44/x - Step 3: Cross multiply
743,761.44x = 1,115,654.58 × 389,467.44 - Step 4: Simplify right side
743,761.44x = 434,511,133,196.88 - Step 5: Solve for x
x = 434,511,133,196.88/743,761.44 - Step 6: Final answer
x = 584,207.66
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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.