Finding the Fourth Proportional to 719,491.91, 992,872.80 and 397,195.08
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Solution
The fourth proportional to 719,491.91, 992,872.80 and 397,195.08 is: 548,114.84
Step by Step Solution
- Step 1: Write the proportion equation
719,491.91 : 992,872.80 = 397,195.08 : x - Step 2: Convert to fraction form
719,491.91/992,872.80 = 397,195.08/x - Step 3: Cross multiply
719,491.91x = 992,872.80 × 397,195.08 - Step 4: Simplify right side
719,491.91x = 394,364,191,225.82 - Step 5: Solve for x
x = 394,364,191,225.82/719,491.91 - Step 6: Final answer
x = 548,114.84
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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.