Finding the Fourth Proportional to 397,754.42, 549,104.47 and 306,906.44
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Solution
The fourth proportional to 397,754.42, 549,104.47 and 306,906.44 is: 423,687.80
Step by Step Solution
- Step 1: Write the proportion equation
397,754.42 : 549,104.47 = 306,906.44 : x - Step 2: Convert to fraction form
397,754.42/549,104.47 = 306,906.44/x - Step 3: Cross multiply
397,754.42x = 549,104.47 × 306,906.44 - Step 4: Simplify right side
397,754.42x = 168,523,694,563.00 - Step 5: Solve for x
x = 168,523,694,563.00/397,754.42 - Step 6: Final answer
x = 423,687.80
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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.