Finding the Fourth Proportional to 823,661.29, 1,236,290.87 and 397,497.05
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Solution
The fourth proportional to 823,661.29, 1,236,290.87 and 397,497.05 is: 596,631.14
Step by Step Solution
- Step 1: Write the proportion equation
823,661.29 : 1,236,290.87 = 397,497.05 : x - Step 2: Convert to fraction form
823,661.29/1,236,290.87 = 397,497.05/x - Step 3: Cross multiply
823,661.29x = 1,236,290.87 × 397,497.05 - Step 4: Simplify right side
823,661.29x = 491,421,973,766.93 - Step 5: Solve for x
x = 491,421,973,766.93/823,661.29 - Step 6: Final answer
x = 596,631.14
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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.