Finding the Fourth Proportional to 818,706.87, 1,129,049.16 and 647,034.96
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Solution
The fourth proportional to 818,706.87, 1,129,049.16 and 647,034.96 is: 892,302.61
Step by Step Solution
- Step 1: Write the proportion equation
818,706.87 : 1,129,049.16 = 647,034.96 : x - Step 2: Convert to fraction form
818,706.87/1,129,049.16 = 647,034.96/x - Step 3: Cross multiply
818,706.87x = 1,129,049.16 × 647,034.96 - Step 4: Simplify right side
818,706.87x = 730,534,278,078.63 - Step 5: Solve for x
x = 730,534,278,078.63/818,706.87 - Step 6: Final answer
x = 892,302.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.