Finding the Fourth Proportional to 694,231.43, 958,128.08 and 388,324.80
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Solution
The fourth proportional to 694,231.43, 958,128.08 and 388,324.80 is: 535,937.84
Step by Step Solution
- Step 1: Write the proportion equation
694,231.43 : 958,128.08 = 388,324.80 : x - Step 2: Convert to fraction form
694,231.43/958,128.08 = 388,324.80/x - Step 3: Cross multiply
694,231.43x = 958,128.08 × 388,324.80 - Step 4: Simplify right side
694,231.43x = 372,064,893,098.76 - Step 5: Solve for x
x = 372,064,893,098.76/694,231.43 - Step 6: Final answer
x = 535,937.84
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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.