Finding the Fourth Proportional to 690,745.56, 1,036,708.80 and 270,316.68
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Solution
The fourth proportional to 690,745.56, 1,036,708.80 and 270,316.68 is: 405,706.09
Step by Step Solution
- Step 1: Write the proportion equation
690,745.56 : 1,036,708.80 = 270,316.68 : x - Step 2: Convert to fraction form
690,745.56/1,036,708.80 = 270,316.68/x - Step 3: Cross multiply
690,745.56x = 1,036,708.80 × 270,316.68 - Step 4: Simplify right side
690,745.56x = 280,239,680,942.78 - Step 5: Solve for x
x = 280,239,680,942.78/690,745.56 - Step 6: Final answer
x = 405,706.09
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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.