Finding the Fourth Proportional to 719,476.68, 992,851.74 and 397,179.84
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Solution
The fourth proportional to 719,476.68, 992,851.74 and 397,179.84 is: 548,093.78
Step by Step Solution
- Step 1: Write the proportion equation
719,476.68 : 992,851.74 = 397,179.84 : x - Step 2: Convert to fraction form
719,476.68/992,851.74 = 397,179.84/x - Step 3: Cross multiply
719,476.68x = 992,851.74 × 397,179.84 - Step 4: Simplify right side
719,476.68x = 394,340,695,236.92 - Step 5: Solve for x
x = 394,340,695,236.92/719,476.68 - Step 6: Final answer
x = 548,093.78
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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.