Finding the Fourth Proportional to 719,557.84, 992,991.33 and 397,268.56
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Solution
The fourth proportional to 719,557.84, 992,991.33 and 397,268.56 is: 548,231.45
Step by Step Solution
- Step 1: Write the proportion equation
719,557.84 : 992,991.33 = 397,268.56 : x - Step 2: Convert to fraction form
719,557.84/992,991.33 = 397,268.56/x - Step 3: Cross multiply
719,557.84x = 992,991.33 × 397,268.56 - Step 4: Simplify right side
719,557.84x = 394,484,235,761.59 - Step 5: Solve for x
x = 394,484,235,761.59/719,557.84 - Step 6: Final answer
x = 548,231.45
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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.