Finding the Fourth Proportional to 1,279,764.88, 1,919,647.33 and 381,183.26
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Solution
The fourth proportional to 1,279,764.88, 1,919,647.33 and 381,183.26 is: 571,774.89
Step by Step Solution
- Step 1: Write the proportion equation
1,279,764.88 : 1,919,647.33 = 381,183.26 : x - Step 2: Convert to fraction form
1,279,764.88/1,919,647.33 = 381,183.26/x - Step 3: Cross multiply
1,279,764.88x = 1,919,647.33 × 381,183.26 - Step 4: Simplify right side
1,279,764.88x = 731,737,416,748.50 - Step 5: Solve for x
x = 731,737,416,748.50/1,279,764.88 - Step 6: Final answer
x = 571,774.89
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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.