Finding the Fourth Proportional to 745,589.09, 1,118,299.87 and 205,922.09
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Solution
The fourth proportional to 745,589.09, 1,118,299.87 and 205,922.09 is: 308,859.99
Step by Step Solution
- Step 1: Write the proportion equation
745,589.09 : 1,118,299.87 = 205,922.09 : x - Step 2: Convert to fraction form
745,589.09/1,118,299.87 = 205,922.09/x - Step 3: Cross multiply
745,589.09x = 1,118,299.87 × 205,922.09 - Step 4: Simplify right side
745,589.09x = 230,282,640,370.82 - Step 5: Solve for x
x = 230,282,640,370.82/745,589.09 - Step 6: Final answer
x = 308,859.99
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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.