Finding the Fourth Proportional to 677,456.49, 1,015,862.97 and 393,234.75
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Solution
The fourth proportional to 677,456.49, 1,015,862.97 and 393,234.75 is: 589,665.35
Step by Step Solution
- Step 1: Write the proportion equation
677,456.49 : 1,015,862.97 = 393,234.75 : x - Step 2: Convert to fraction form
677,456.49/1,015,862.97 = 393,234.75/x - Step 3: Cross multiply
677,456.49x = 1,015,862.97 × 393,234.75 - Step 4: Simplify right side
677,456.49x = 399,472,621,042.21 - Step 5: Solve for x
x = 399,472,621,042.21/677,456.49 - Step 6: Final answer
x = 589,665.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.