Finding the Fourth Proportional to 820,394.18, 1,230,585.80 and 441,493.19
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Solution
The fourth proportional to 820,394.18, 1,230,585.80 and 441,493.19 is: 662,236.84
Step by Step Solution
- Step 1: Write the proportion equation
820,394.18 : 1,230,585.80 = 441,493.19 : x - Step 2: Convert to fraction form
820,394.18/1,230,585.80 = 441,493.19/x - Step 3: Cross multiply
820,394.18x = 1,230,585.80 × 441,493.19 - Step 4: Simplify right side
820,394.18x = 543,295,242,050.31 - Step 5: Solve for x
x = 543,295,242,050.31/820,394.18 - Step 6: Final answer
x = 662,236.84
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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.