Finding the Fourth Proportional to 1,345,855.99, 2,019,084.05 and 386,236.79
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Solution
The fourth proportional to 1,345,855.99, 2,019,084.05 and 386,236.79 is: 579,441.30
Step by Step Solution
- Step 1: Write the proportion equation
1,345,855.99 : 2,019,084.05 = 386,236.79 : x - Step 2: Convert to fraction form
1,345,855.99/2,019,084.05 = 386,236.79/x - Step 3: Cross multiply
1,345,855.99x = 2,019,084.05 × 386,236.79 - Step 4: Simplify right side
1,345,855.99x = 779,844,542,212.20 - Step 5: Solve for x
x = 779,844,542,212.20/1,345,855.99 - Step 6: Final answer
x = 579,441.30
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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.