Finding the Fourth Proportional to 681,271.91, 940,155.52 and 394,957.99
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Solution
The fourth proportional to 681,271.91, 940,155.52 and 394,957.99 is: 545,042.19
Step by Step Solution
- Step 1: Write the proportion equation
681,271.91 : 940,155.52 = 394,957.99 : x - Step 2: Convert to fraction form
681,271.91/940,155.52 = 394,957.99/x - Step 3: Cross multiply
681,271.91x = 940,155.52 × 394,957.99 - Step 4: Simplify right side
681,271.91x = 371,321,932,491.82 - Step 5: Solve for x
x = 371,321,932,491.82/681,271.91 - Step 6: Final answer
x = 545,042.19
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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.