Finding the Fourth Proportional to 394,725.29, 544,723.97 and 217,921.20
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Solution
The fourth proportional to 394,725.29, 544,723.97 and 217,921.20 is: 300,732.94
Step by Step Solution
- Step 1: Write the proportion equation
394,725.29 : 544,723.97 = 217,921.20 : x - Step 2: Convert to fraction form
394,725.29/544,723.97 = 217,921.20/x - Step 3: Cross multiply
394,725.29x = 544,723.97 × 217,921.20 - Step 4: Simplify right side
394,725.29x = 118,706,897,397.94 - Step 5: Solve for x
x = 118,706,897,397.94/394,725.29 - Step 6: Final answer
x = 300,732.94
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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.