Finding the Fourth Proportional to 856,968.39, 1,285,193.70 and 257,770.44
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Solution
The fourth proportional to 856,968.39, 1,285,193.70 and 257,770.44 is: 386,577.79
Step by Step Solution
- Step 1: Write the proportion equation
856,968.39 : 1,285,193.70 = 257,770.44 : x - Step 2: Convert to fraction form
856,968.39/1,285,193.70 = 257,770.44/x - Step 3: Cross multiply
856,968.39x = 1,285,193.70 × 257,770.44 - Step 4: Simplify right side
856,968.39x = 331,284,945,534.23 - Step 5: Solve for x
x = 331,284,945,534.23/856,968.39 - Step 6: Final answer
x = 386,577.79
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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.