Finding the Fourth Proportional to 809,202.12, 1,213,415.16 and 382,382.68
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Solution
The fourth proportional to 809,202.12, 1,213,415.16 and 382,382.68 is: 573,390.66
Step by Step Solution
- Step 1: Write the proportion equation
809,202.12 : 1,213,415.16 = 382,382.68 : x - Step 2: Convert to fraction form
809,202.12/1,213,415.16 = 382,382.68/x - Step 3: Cross multiply
809,202.12x = 1,213,415.16 × 382,382.68 - Step 4: Simplify right side
809,202.12x = 463,988,940,833.43 - Step 5: Solve for x
x = 463,988,940,833.43/809,202.12 - Step 6: Final answer
x = 573,390.66
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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.