Finding the Fourth Proportional to 633,988.44, 874,993.68 and 392,348.88
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Solution
The fourth proportional to 633,988.44, 874,993.68 and 392,348.88 is: 541,496.92
Step by Step Solution
- Step 1: Write the proportion equation
633,988.44 : 874,993.68 = 392,348.88 : x - Step 2: Convert to fraction form
633,988.44/874,993.68 = 392,348.88/x - Step 3: Cross multiply
633,988.44x = 874,993.68 × 392,348.88 - Step 4: Simplify right side
633,988.44x = 343,302,790,355.08 - Step 5: Solve for x
x = 343,302,790,355.08/633,988.44 - Step 6: Final answer
x = 541,496.92
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1.5x scale
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.