Finding the Fourth Proportional to 743,520.63, 1,115,305.20 and 353,942.53
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Solution
The fourth proportional to 743,520.63, 1,115,305.20 and 353,942.53 is: 530,925.33
Step by Step Solution
- Step 1: Write the proportion equation
743,520.63 : 1,115,305.20 = 353,942.53 : x - Step 2: Convert to fraction form
743,520.63/1,115,305.20 = 353,942.53/x - Step 3: Cross multiply
743,520.63x = 1,115,305.20 × 353,942.53 - Step 4: Simplify right side
743,520.63x = 394,753,936,863.92 - Step 5: Solve for x
x = 394,753,936,863.92/743,520.63 - Step 6: Final answer
x = 530,925.33
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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.