Finding the Fourth Proportional to 681,247.14, 940,130.19 and 379,441.14
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Solution
The fourth proportional to 681,247.14, 940,130.19 and 379,441.14 is: 523,633.86
Step by Step Solution
- Step 1: Write the proportion equation
681,247.14 : 940,130.19 = 379,441.14 : x - Step 2: Convert to fraction form
681,247.14/940,130.19 = 379,441.14/x - Step 3: Cross multiply
681,247.14x = 940,130.19 × 379,441.14 - Step 4: Simplify right side
681,247.14x = 356,724,071,042.02 - Step 5: Solve for x
x = 356,724,071,042.02/681,247.14 - Step 6: Final answer
x = 523,633.86
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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.