Finding the Fourth Proportional to 511,201.30, 705,448.36 and 278,630.26
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Solution
The fourth proportional to 511,201.30, 705,448.36 and 278,630.26 is: 384,504.62
Step by Step Solution
- Step 1: Write the proportion equation
511,201.30 : 705,448.36 = 278,630.26 : x - Step 2: Convert to fraction form
511,201.30/705,448.36 = 278,630.26/x - Step 3: Cross multiply
511,201.30x = 705,448.36 × 278,630.26 - Step 4: Simplify right side
511,201.30x = 196,559,259,963.37 - Step 5: Solve for x
x = 196,559,259,963.37/511,201.30 - Step 6: Final answer
x = 384,504.62
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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.