Finding the Fourth Proportional to 925,843.36, 1,388,918.94 and 318,607.42
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Solution
The fourth proportional to 925,843.36, 1,388,918.94 and 318,607.42 is: 477,964.09
Step by Step Solution
- Step 1: Write the proportion equation
925,843.36 : 1,388,918.94 = 318,607.42 : x - Step 2: Convert to fraction form
925,843.36/1,388,918.94 = 318,607.42/x - Step 3: Cross multiply
925,843.36x = 1,388,918.94 × 318,607.42 - Step 4: Simplify right side
925,843.36x = 442,519,880,062.54 - Step 5: Solve for x
x = 442,519,880,062.54/925,843.36 - Step 6: Final answer
x = 477,964.09
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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.