Finding the Fourth Proportional to 714,928.26, 986,618.16 and 392,645.34
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Solution
The fourth proportional to 714,928.26, 986,618.16 and 392,645.34 is: 541,859.99
Step by Step Solution
- Step 1: Write the proportion equation
714,928.26 : 986,618.16 = 392,645.34 : x - Step 2: Convert to fraction form
714,928.26/986,618.16 = 392,645.34/x - Step 3: Cross multiply
714,928.26x = 986,618.16 × 392,645.34 - Step 4: Simplify right side
714,928.26x = 387,391,022,883.37 - Step 5: Solve for x
x = 387,391,022,883.37/714,928.26 - Step 6: Final answer
x = 541,859.99
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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.