Finding the Fourth Proportional to 515,674.07, 711,619.19 and 286,217.98
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Solution
The fourth proportional to 515,674.07, 711,619.19 and 286,217.98 is: 394,974.69
Step by Step Solution
- Step 1: Write the proportion equation
515,674.07 : 711,619.19 = 286,217.98 : x - Step 2: Convert to fraction form
515,674.07/711,619.19 = 286,217.98/x - Step 3: Cross multiply
515,674.07x = 711,619.19 × 286,217.98 - Step 4: Simplify right side
515,674.07x = 203,678,204,954.22 - Step 5: Solve for x
x = 203,678,204,954.22/515,674.07 - Step 6: Final answer
x = 394,974.69
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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.