Finding the Fourth Proportional to 550,382.09, 759,525.96 and 305,404.07
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Solution
The fourth proportional to 550,382.09, 759,525.96 and 305,404.07 is: 421,456.88
Step by Step Solution
- Step 1: Write the proportion equation
550,382.09 : 759,525.96 = 305,404.07 : x - Step 2: Convert to fraction form
550,382.09/759,525.96 = 305,404.07/x - Step 3: Cross multiply
550,382.09x = 759,525.96 × 305,404.07 - Step 4: Simplify right side
550,382.09x = 231,962,321,074.63 - Step 5: Solve for x
x = 231,962,321,074.63/550,382.09 - Step 6: Final answer
x = 421,456.88
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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.