Finding the Fourth Proportional to 633,661.16, 874,425.70 and 378,861.80
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Solution
The fourth proportional to 633,661.16, 874,425.70 and 378,861.80 is: 522,813.32
Step by Step Solution
- Step 1: Write the proportion equation
633,661.16 : 874,425.70 = 378,861.80 : x - Step 2: Convert to fraction form
633,661.16/874,425.70 = 378,861.80/x - Step 3: Cross multiply
633,661.16x = 874,425.70 × 378,861.80 - Step 4: Simplify right side
633,661.16x = 331,286,494,668.26 - Step 5: Solve for x
x = 331,286,494,668.26/633,661.16 - Step 6: Final answer
x = 522,813.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.