Finding the Fourth Proportional to 919,657.40, 1,379,544.42 and 288,596.12
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Solution
The fourth proportional to 919,657.40, 1,379,544.42 and 288,596.12 is: 432,912.48
Step by Step Solution
- Step 1: Write the proportion equation
919,657.40 : 1,379,544.42 = 288,596.12 : x - Step 2: Convert to fraction form
919,657.40/1,379,544.42 = 288,596.12/x - Step 3: Cross multiply
919,657.40x = 1,379,544.42 × 288,596.12 - Step 4: Simplify right side
919,657.40x = 398,131,166,979.65 - Step 5: Solve for x
x = 398,131,166,979.65/919,657.40 - Step 6: Final answer
x = 432,912.48
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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.