Finding the Fourth Proportional to 738,750.78, 1,019,414.97 and 416,540.07
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Solution
The fourth proportional to 738,750.78, 1,019,414.97 and 416,540.07 is: 574,790.84
Step by Step Solution
- Step 1: Write the proportion equation
738,750.78 : 1,019,414.97 = 416,540.07 : x - Step 2: Convert to fraction form
738,750.78/1,019,414.97 = 416,540.07/x - Step 3: Cross multiply
738,750.78x = 1,019,414.97 × 416,540.07 - Step 4: Simplify right side
738,750.78x = 424,627,182,962.85 - Step 5: Solve for x
x = 424,627,182,962.85/738,750.78 - Step 6: Final answer
x = 574,790.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.