Finding the Fourth Proportional to 1,263,685.12, 1,895,625.60 and 422,239.84
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Solution
The fourth proportional to 1,263,685.12, 1,895,625.60 and 422,239.84 is: 633,392.48
Step by Step Solution
- Step 1: Write the proportion equation
1,263,685.12 : 1,895,625.60 = 422,239.84 : x - Step 2: Convert to fraction form
1,263,685.12/1,895,625.60 = 422,239.84/x - Step 3: Cross multiply
1,263,685.12x = 1,895,625.60 × 422,239.84 - Step 4: Simplify right side
1,263,685.12x = 800,408,650,043.90 - Step 5: Solve for x
x = 800,408,650,043.90/1,263,685.12 - Step 6: Final answer
x = 633,392.48
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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.