Finding the Fourth Proportional to 853,466.51, 1,279,918.36 and 284,690.88
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Solution
The fourth proportional to 853,466.51, 1,279,918.36 and 284,690.88 is: 426,942.45
Step by Step Solution
- Step 1: Write the proportion equation
853,466.51 : 1,279,918.36 = 284,690.88 : x - Step 2: Convert to fraction form
853,466.51/1,279,918.36 = 284,690.88/x - Step 3: Cross multiply
853,466.51x = 1,279,918.36 × 284,690.88 - Step 4: Simplify right side
853,466.51x = 364,381,084,236.56 - Step 5: Solve for x
x = 364,381,084,236.56/853,466.51 - Step 6: Final answer
x = 426,942.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.