Finding the Fourth Proportional to 823,664.79, 1,236,296.12 and 397,500.53
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Solution
The fourth proportional to 823,664.79, 1,236,296.12 and 397,500.53 is: 596,636.35
Step by Step Solution
- Step 1: Write the proportion equation
823,664.79 : 1,236,296.12 = 397,500.53 : x - Step 2: Convert to fraction form
823,664.79/1,236,296.12 = 397,500.53/x - Step 3: Cross multiply
823,664.79x = 1,236,296.12 × 397,500.53 - Step 4: Simplify right side
823,664.79x = 491,428,354,767.96 - Step 5: Solve for x
x = 491,428,354,767.96/823,664.79 - Step 6: Final answer
x = 596,636.35
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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.