Finding the Fourth Proportional to 719,258.19, 992,571.41 and 396,968.28
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Solution
The fourth proportional to 719,258.19, 992,571.41 and 396,968.28 is: 547,813.52
Step by Step Solution
- Step 1: Write the proportion equation
719,258.19 : 992,571.41 = 396,968.28 : x - Step 2: Convert to fraction form
719,258.19/992,571.41 = 396,968.28/x - Step 3: Cross multiply
719,258.19x = 992,571.41 × 396,968.28 - Step 4: Simplify right side
719,258.19x = 394,019,359,449.60 - Step 5: Solve for x
x = 394,019,359,449.60/719,258.19 - Step 6: Final answer
x = 547,813.52
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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.