Finding the Fourth Proportional to 1,085,857.84, 1,628,720.16 and 486,658.18
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Solution
The fourth proportional to 1,085,857.84, 1,628,720.16 and 486,658.18 is: 729,957.42
Step by Step Solution
- Step 1: Write the proportion equation
1,085,857.84 : 1,628,720.16 = 486,658.18 : x - Step 2: Convert to fraction form
1,085,857.84/1,628,720.16 = 486,658.18/x - Step 3: Cross multiply
1,085,857.84x = 1,628,720.16 × 486,658.18 - Step 4: Simplify right side
1,085,857.84x = 792,629,988,794.91 - Step 5: Solve for x
x = 792,629,988,794.91/1,085,857.84 - Step 6: Final answer
x = 729,957.42
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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.