Finding the Fourth Proportional to 756,716.12, 1,135,235.98 and 276,942.32
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Solution
The fourth proportional to 756,716.12, 1,135,235.98 and 276,942.32 is: 415,472.70
Step by Step Solution
- Step 1: Write the proportion equation
756,716.12 : 1,135,235.98 = 276,942.32 : x - Step 2: Convert to fraction form
756,716.12/1,135,235.98 = 276,942.32/x - Step 3: Cross multiply
756,716.12x = 1,135,235.98 × 276,942.32 - Step 4: Simplify right side
756,716.12x = 314,394,886,048.67 - Step 5: Solve for x
x = 314,394,886,048.67/756,716.12 - Step 6: Final answer
x = 415,472.70
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1.5x scale
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.