Finding the Fourth Proportional to 714,887.91, 986,542.74 and 392,618.88
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Solution
The fourth proportional to 714,887.91, 986,542.74 and 392,618.88 is: 541,812.64
Step by Step Solution
- Step 1: Write the proportion equation
714,887.91 : 986,542.74 = 392,618.88 : x - Step 2: Convert to fraction form
714,887.91/986,542.74 = 392,618.88/x - Step 3: Cross multiply
714,887.91x = 986,542.74 × 392,618.88 - Step 4: Simplify right side
714,887.91x = 387,335,305,650.93 - Step 5: Solve for x
x = 387,335,305,650.93/714,887.91 - Step 6: Final answer
x = 541,812.64
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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.