Finding the Fourth Proportional to 819,613.24, 1,229,419.84 and 220,575.70
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Solution
The fourth proportional to 819,613.24, 1,229,419.84 and 220,575.70 is: 330,863.54
Step by Step Solution
- Step 1: Write the proportion equation
819,613.24 : 1,229,419.84 = 220,575.70 : x - Step 2: Convert to fraction form
819,613.24/1,229,419.84 = 220,575.70/x - Step 3: Cross multiply
819,613.24x = 1,229,419.84 × 220,575.70 - Step 4: Simplify right side
819,613.24x = 271,180,141,801.89 - Step 5: Solve for x
x = 271,180,141,801.89/819,613.24 - Step 6: Final answer
x = 330,863.54
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1.5x scale
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.