Finding the Fourth Proportional to 1,121,371.05, 1,682,314.17 and 322,659.21
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Solution
The fourth proportional to 1,121,371.05, 1,682,314.17 and 322,659.21 is: 484,062.93
Step by Step Solution
- Step 1: Write the proportion equation
1,121,371.05 : 1,682,314.17 = 322,659.21 : x - Step 2: Convert to fraction form
1,121,371.05/1,682,314.17 = 322,659.21/x - Step 3: Cross multiply
1,121,371.05x = 1,682,314.17 × 322,659.21 - Step 4: Simplify right side
1,121,371.05x = 542,814,161,064.01 - Step 5: Solve for x
x = 542,814,161,064.01/1,121,371.05 - Step 6: Final answer
x = 484,062.93
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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.