Finding the Fourth Proportional to 870,812.88, 1,304,230.62 and 415,724.23
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Solution
The fourth proportional to 870,812.88, 1,304,230.62 and 415,724.23 is: 622,636.95
Step by Step Solution
- Step 1: Write the proportion equation
870,812.88 : 1,304,230.62 = 415,724.23 : x - Step 2: Convert to fraction form
870,812.88/1,304,230.62 = 415,724.23/x - Step 3: Cross multiply
870,812.88x = 1,304,230.62 × 415,724.23 - Step 4: Simplify right side
870,812.88x = 542,200,273,591.65 - Step 5: Solve for x
x = 542,200,273,591.65/870,812.88 - Step 6: Final answer
x = 622,636.95
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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.