Finding the Fourth Proportional to 831,908.49, 1,247,862.74 and 270,942.99
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Solution
The fourth proportional to 831,908.49, 1,247,862.74 and 270,942.99 is: 406,414.49
Step by Step Solution
- Step 1: Write the proportion equation
831,908.49 : 1,247,862.74 = 270,942.99 : x - Step 2: Convert to fraction form
831,908.49/1,247,862.74 = 270,942.99/x - Step 3: Cross multiply
831,908.49x = 1,247,862.74 × 270,942.99 - Step 4: Simplify right side
831,908.49x = 338,099,660,530.48 - Step 5: Solve for x
x = 338,099,660,530.48/831,908.49 - Step 6: Final answer
x = 406,414.49
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1.5x scale
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.