Finding the Fourth Proportional to 1,278,765.74, 1,764,570.99 and 705,768.97
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Solution
The fourth proportional to 1,278,765.74, 1,764,570.99 and 705,768.97 is: 973,891.78
Step by Step Solution
- Step 1: Write the proportion equation
1,278,765.74 : 1,764,570.99 = 705,768.97 : x - Step 2: Convert to fraction form
1,278,765.74/1,764,570.99 = 705,768.97/x - Step 3: Cross multiply
1,278,765.74x = 1,764,570.99 × 705,768.97 - Step 4: Simplify right side
1,278,765.74x = 1,245,379,443,045.75 - Step 5: Solve for x
x = 1,245,379,443,045.75/1,278,765.74 - Step 6: Final answer
x = 973,891.78
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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.