Finding the Fourth Proportional to 1,806,790.61, 2,493,383.30 and 990,999.99
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Solution
The fourth proportional to 1,806,790.61, 2,493,383.30 and 990,999.99 is: 1,367,586.71
Step by Step Solution
- Step 1: Write the proportion equation
1,806,790.61 : 2,493,383.30 = 990,999.99 : x - Step 2: Convert to fraction form
1,806,790.61/2,493,383.30 = 990,999.99/x - Step 3: Cross multiply
1,806,790.61x = 2,493,383.30 × 990,999.99 - Step 4: Simplify right side
1,806,790.61x = 2,470,942,820,411.17 - Step 5: Solve for x
x = 2,470,942,820,411.17/1,806,790.61 - Step 6: Final answer
x = 1,367,586.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.