Finding the Fourth Proportional to 1,419,433.92, 2,129,486.50 and 459,887.98
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Solution
The fourth proportional to 1,419,433.92, 2,129,486.50 and 459,887.98 is: 689,940.70
Step by Step Solution
- Step 1: Write the proportion equation
1,419,433.92 : 2,129,486.50 = 459,887.98 : x - Step 2: Convert to fraction form
1,419,433.92/2,129,486.50 = 459,887.98/x - Step 3: Cross multiply
1,419,433.92x = 2,129,486.50 × 459,887.98 - Step 4: Simplify right side
1,419,433.92x = 979,325,234,274.84 - Step 5: Solve for x
x = 979,325,234,274.84/1,419,433.92 - Step 6: Final answer
x = 689,940.70
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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.