Finding the Fourth Proportional to 419,679.41, 628,992.41 and 330,581.03
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Solution
The fourth proportional to 419,679.41, 628,992.41 and 330,581.03 is: 495,456.66
Step by Step Solution
- Step 1: Write the proportion equation
419,679.41 : 628,992.41 = 330,581.03 : x - Step 2: Convert to fraction form
419,679.41/628,992.41 = 330,581.03/x - Step 3: Cross multiply
419,679.41x = 628,992.41 × 330,581.03 - Step 4: Simplify right side
419,679.41x = 207,932,957,107.08 - Step 5: Solve for x
x = 207,932,957,107.08/419,679.41 - Step 6: Final answer
x = 495,456.66
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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.