Finding the Fourth Proportional to 1,968,258.38, 2,716,206.09 and 1,108,832.18
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Solution
The fourth proportional to 1,968,258.38, 2,716,206.09 and 1,108,832.18 is: 1,530,193.77
Step by Step Solution
- Step 1: Write the proportion equation
1,968,258.38 : 2,716,206.09 = 1,108,832.18 : x - Step 2: Convert to fraction form
1,968,258.38/2,716,206.09 = 1,108,832.18/x - Step 3: Cross multiply
1,968,258.38x = 2,716,206.09 × 1,108,832.18 - Step 4: Simplify right side
1,968,258.38x = 3,011,816,720,103.98 - Step 5: Solve for x
x = 3,011,816,720,103.98/1,968,258.38 - Step 6: Final answer
x = 1,530,193.77
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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.