Finding the Fourth Proportional to 725,442.60, 1,088,163.90 and 445,117.80
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Solution
The fourth proportional to 725,442.60, 1,088,163.90 and 445,117.80 is: 667,676.70
Step by Step Solution
- Step 1: Write the proportion equation
725,442.60 : 1,088,163.90 = 445,117.80 : x - Step 2: Convert to fraction form
725,442.60/1,088,163.90 = 445,117.80/x - Step 3: Cross multiply
725,442.60x = 1,088,163.90 × 445,117.80 - Step 4: Simplify right side
725,442.60x = 484,361,121,207.42 - Step 5: Solve for x
x = 484,361,121,207.42/725,442.60 - Step 6: Final answer
x = 667,676.70
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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.