Finding the Fourth Proportional to 382,812.82, 574,305.74 and 126,644.79
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Solution
The fourth proportional to 382,812.82, 574,305.74 and 126,644.79 is: 189,995.80
Step by Step Solution
- Step 1: Write the proportion equation
382,812.82 : 574,305.74 = 126,644.79 : x - Step 2: Convert to fraction form
382,812.82/574,305.74 = 126,644.79/x - Step 3: Cross multiply
382,812.82x = 574,305.74 × 126,644.79 - Step 4: Simplify right side
382,812.82x = 72,732,829,838.09 - Step 5: Solve for x
x = 72,732,829,838.09/382,812.82 - Step 6: Final answer
x = 189,995.80
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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.