Finding the Fourth Proportional to 828,782.07, 1,243,049.94 and 229,680.75
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Solution
The fourth proportional to 828,782.07, 1,243,049.94 and 229,680.75 is: 344,486.99
Step by Step Solution
- Step 1: Write the proportion equation
828,782.07 : 1,243,049.94 = 229,680.75 : x - Step 2: Convert to fraction form
828,782.07/1,243,049.94 = 229,680.75/x - Step 3: Cross multiply
828,782.07x = 1,243,049.94 × 229,680.75 - Step 4: Simplify right side
828,782.07x = 285,504,642,506.66 - Step 5: Solve for x
x = 285,504,642,506.66/828,782.07 - Step 6: Final answer
x = 344,486.99
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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.