Finding the Fourth Proportional to 342,523.80, 513,785.70 and 328,745.70
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Solution
The fourth proportional to 342,523.80, 513,785.70 and 328,745.70 is: 493,118.55
Step by Step Solution
- Step 1: Write the proportion equation
342,523.80 : 513,785.70 = 328,745.70 : x - Step 2: Convert to fraction form
342,523.80/513,785.70 = 328,745.70/x - Step 3: Cross multiply
342,523.80x = 513,785.70 × 328,745.70 - Step 4: Simplify right side
342,523.80x = 168,904,839,596.49 - Step 5: Solve for x
x = 168,904,839,596.49/342,523.80 - Step 6: Final answer
x = 493,118.55
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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.