Finding the Fourth Proportional to 715,035.26, 986,755.77 and 388,354.65
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Solution
The fourth proportional to 715,035.26, 986,755.77 and 388,354.65 is: 535,933.28
Step by Step Solution
- Step 1: Write the proportion equation
715,035.26 : 986,755.77 = 388,354.65 : x - Step 2: Convert to fraction form
715,035.26/986,755.77 = 388,354.65/x - Step 3: Cross multiply
715,035.26x = 986,755.77 × 388,354.65 - Step 4: Simplify right side
715,035.26x = 383,211,193,544.00 - Step 5: Solve for x
x = 383,211,193,544.00/715,035.26 - Step 6: Final answer
x = 535,933.28
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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.