Finding the Fourth Proportional to 768,683.36, 1,152,906.82 and 256,357.49
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Solution
The fourth proportional to 768,683.36, 1,152,906.82 and 256,357.49 is: 384,496.80
Step by Step Solution
- Step 1: Write the proportion equation
768,683.36 : 1,152,906.82 = 256,357.49 : x - Step 2: Convert to fraction form
768,683.36/1,152,906.82 = 256,357.49/x - Step 3: Cross multiply
768,683.36x = 1,152,906.82 × 256,357.49 - Step 4: Simplify right side
768,683.36x = 295,556,292,173.65 - Step 5: Solve for x
x = 295,556,292,173.65/768,683.36 - Step 6: Final answer
x = 384,496.80
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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.