Finding the Fourth Proportional to 763,818.64, 1,145,729.46 and 284,151.62
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Solution
The fourth proportional to 763,818.64, 1,145,729.46 and 284,151.62 is: 426,227.99
Step by Step Solution
- Step 1: Write the proportion equation
763,818.64 : 1,145,729.46 = 284,151.62 : x - Step 2: Convert to fraction form
763,818.64/1,145,729.46 = 284,151.62/x - Step 3: Cross multiply
763,818.64x = 1,145,729.46 × 284,151.62 - Step 4: Simplify right side
763,818.64x = 325,560,882,140.73 - Step 5: Solve for x
x = 325,560,882,140.73/763,818.64 - Step 6: Final answer
x = 426,227.99
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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.