Finding the Fourth Proportional to 1,129,745.84, 1,694,632.46 and 331,043.58
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Solution
The fourth proportional to 1,129,745.84, 1,694,632.46 and 331,043.58 is: 496,569.39
Step by Step Solution
- Step 1: Write the proportion equation
1,129,745.84 : 1,694,632.46 = 331,043.58 : x - Step 2: Convert to fraction form
1,129,745.84/1,694,632.46 = 331,043.58/x - Step 3: Cross multiply
1,129,745.84x = 1,694,632.46 × 331,043.58 - Step 4: Simplify right side
1,129,745.84x = 560,997,194,687.39 - Step 5: Solve for x
x = 560,997,194,687.39/1,129,745.84 - Step 6: Final answer
x = 496,569.39
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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.