Finding the Fourth Proportional to 809,738.20, 1,214,607.30 and 277,211.80
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Solution
The fourth proportional to 809,738.20, 1,214,607.30 and 277,211.80 is: 415,817.70
Step by Step Solution
- Step 1: Write the proportion equation
809,738.20 : 1,214,607.30 = 277,211.80 : x - Step 2: Convert to fraction form
809,738.20/1,214,607.30 = 277,211.80/x - Step 3: Cross multiply
809,738.20x = 1,214,607.30 × 277,211.80 - Step 4: Simplify right side
809,738.20x = 336,703,475,926.14 - Step 5: Solve for x
x = 336,703,475,926.14/809,738.20 - Step 6: Final answer
x = 415,817.70
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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.