Finding the Fourth Proportional to 819,907.25, 1,229,861.07 and 440,305.81
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Solution
The fourth proportional to 819,907.25, 1,229,861.07 and 440,305.81 is: 660,458.82
Step by Step Solution
- Step 1: Write the proportion equation
819,907.25 : 1,229,861.07 = 440,305.81 : x - Step 2: Convert to fraction form
819,907.25/1,229,861.07 = 440,305.81/x - Step 3: Cross multiply
819,907.25x = 1,229,861.07 × 440,305.81 - Step 4: Simplify right side
819,907.25x = 541,514,971,539.16 - Step 5: Solve for x
x = 541,514,971,539.16/819,907.25 - Step 6: Final answer
x = 660,458.82
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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.