Finding the Fourth Proportional to 693,147.75, 1,039,839.84 and 309,035.99
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Solution
The fourth proportional to 693,147.75, 1,039,839.84 and 309,035.99 is: 463,606.68
Step by Step Solution
- Step 1: Write the proportion equation
693,147.75 : 1,039,839.84 = 309,035.99 : x - Step 2: Convert to fraction form
693,147.75/1,039,839.84 = 309,035.99/x - Step 3: Cross multiply
693,147.75x = 1,039,839.84 × 309,035.99 - Step 4: Simplify right side
693,147.75x = 321,347,929,196.64 - Step 5: Solve for x
x = 321,347,929,196.64/693,147.75 - Step 6: Final answer
x = 463,606.68
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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.