Finding the Fourth Proportional to 511,946.96, 706,157.88 and 310,742.96
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Solution
The fourth proportional to 511,946.96, 706,157.88 and 310,742.96 is: 428,625.63
Step by Step Solution
- Step 1: Write the proportion equation
511,946.96 : 706,157.88 = 310,742.96 : x - Step 2: Convert to fraction form
511,946.96/706,157.88 = 310,742.96/x - Step 3: Cross multiply
511,946.96x = 706,157.88 × 310,742.96 - Step 4: Simplify right side
511,946.96x = 219,433,589,858.53 - Step 5: Solve for x
x = 219,433,589,858.53/511,946.96 - Step 6: Final answer
x = 428,625.63
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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.