Finding the Fourth Proportional to 855,968.68, 1,284,166.62 and 256,940.92
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Solution
The fourth proportional to 855,968.68, 1,284,166.62 and 256,940.92 is: 385,475.50
Step by Step Solution
- Step 1: Write the proportion equation
855,968.68 : 1,284,166.62 = 256,940.92 : x - Step 2: Convert to fraction form
855,968.68/1,284,166.62 = 256,940.92/x - Step 3: Cross multiply
855,968.68x = 1,284,166.62 × 256,940.92 - Step 4: Simplify right side
855,968.68x = 329,954,952,776.09 - Step 5: Solve for x
x = 329,954,952,776.09/855,968.68 - Step 6: Final answer
x = 385,475.50
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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.