Finding the Fourth Proportional to 1,315,198.63, 1,814,974.11 and 711,586.63
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Solution
The fourth proportional to 1,315,198.63, 1,814,974.11 and 711,586.63 is: 981,989.54
Step by Step Solution
- Step 1: Write the proportion equation
1,315,198.63 : 1,814,974.11 = 711,586.63 : x - Step 2: Convert to fraction form
1,315,198.63/1,814,974.11 = 711,586.63/x - Step 3: Cross multiply
1,315,198.63x = 1,814,974.11 × 711,586.63 - Step 4: Simplify right side
1,315,198.63x = 1,291,511,297,839.35 - Step 5: Solve for x
x = 1,291,511,297,839.35/1,315,198.63 - Step 6: Final answer
x = 981,989.54
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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.