Finding the Fourth Proportional to 719,393.88, 992,757.96 and 397,104.08
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Solution
The fourth proportional to 719,393.88, 992,757.96 and 397,104.08 is: 548,000.54
Step by Step Solution
- Step 1: Write the proportion equation
719,393.88 : 992,757.96 = 397,104.08 : x - Step 2: Convert to fraction form
719,393.88/992,757.96 = 397,104.08/x - Step 3: Cross multiply
719,393.88x = 992,757.96 × 397,104.08 - Step 4: Simplify right side
719,393.88x = 394,228,236,368.48 - Step 5: Solve for x
x = 394,228,236,368.48/719,393.88 - Step 6: Final answer
x = 548,000.54
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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.