Finding the Fourth Proportional to 1,430,664.72, 2,146,329.42 and 419,745.84
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Solution
The fourth proportional to 1,430,664.72, 2,146,329.42 and 419,745.84 is: 629,716.27
Step by Step Solution
- Step 1: Write the proportion equation
1,430,664.72 : 2,146,329.42 = 419,745.84 : x - Step 2: Convert to fraction form
1,430,664.72/2,146,329.42 = 419,745.84/x - Step 3: Cross multiply
1,430,664.72x = 2,146,329.42 × 419,745.84 - Step 4: Simplify right side
1,430,664.72x = 900,912,845,314.61 - Step 5: Solve for x
x = 900,912,845,314.61/1,430,664.72 - Step 6: Final answer
x = 629,716.27
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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.