Finding the Fourth Proportional to 809,974.20, 1,214,961.30 and 277,447.80
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Solution
The fourth proportional to 809,974.20, 1,214,961.30 and 277,447.80 is: 416,171.70
Step by Step Solution
- Step 1: Write the proportion equation
809,974.20 : 1,214,961.30 = 277,447.80 : x - Step 2: Convert to fraction form
809,974.20/1,214,961.30 = 277,447.80/x - Step 3: Cross multiply
809,974.20x = 1,214,961.30 × 277,447.80 - Step 4: Simplify right side
809,974.20x = 337,088,339,770.14 - Step 5: Solve for x
x = 337,088,339,770.14/809,974.20 - Step 6: Final answer
x = 416,171.70
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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.