Finding the Fourth Proportional to 1,278,689.44, 1,764,582.74 and 705,729.62
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Solution
The fourth proportional to 1,278,689.44, 1,764,582.74 and 705,729.62 is: 973,902.08
Step by Step Solution
- Step 1: Write the proportion equation
1,278,689.44 : 1,764,582.74 = 705,729.62 : x - Step 2: Convert to fraction form
1,278,689.44/1,764,582.74 = 705,729.62/x - Step 3: Cross multiply
1,278,689.44x = 1,764,582.74 × 705,729.62 - Step 4: Simplify right side
1,278,689.44x = 1,245,318,306,558.76 - Step 5: Solve for x
x = 1,245,318,306,558.76/1,278,689.44 - Step 6: Final answer
x = 973,902.08
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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.