Finding the Fourth Proportional to 846,121.78, 1,269,186.99 and 285,161.14
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Solution
The fourth proportional to 846,121.78, 1,269,186.99 and 285,161.14 is: 427,743.17
Step by Step Solution
- Step 1: Write the proportion equation
846,121.78 : 1,269,186.99 = 285,161.14 : x - Step 2: Convert to fraction form
846,121.78/1,269,186.99 = 285,161.14/x - Step 3: Cross multiply
846,121.78x = 1,269,186.99 × 285,161.14 - Step 4: Simplify right side
846,121.78x = 361,922,808,941.57 - Step 5: Solve for x
x = 361,922,808,941.57/846,121.78 - Step 6: Final answer
x = 427,743.17
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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.