Finding the Fourth Proportional to 485,687.73, 728,619.26 and 219,573.57
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Solution
The fourth proportional to 485,687.73, 728,619.26 and 219,573.57 is: 329,399.99
Step by Step Solution
- Step 1: Write the proportion equation
485,687.73 : 728,619.26 = 219,573.57 : x - Step 2: Convert to fraction form
485,687.73/728,619.26 = 219,573.57/x - Step 3: Cross multiply
485,687.73x = 728,619.26 × 219,573.57 - Step 4: Simplify right side
485,687.73x = 159,985,530,991.09 - Step 5: Solve for x
x = 159,985,530,991.09/485,687.73 - Step 6: Final answer
x = 329,399.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.