Finding the Fourth Proportional to 1,079,396.80, 1,617,712.80 and 828,836.80
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Solution
The fourth proportional to 1,079,396.80, 1,617,712.80 and 828,836.80 is: 1,242,193.70
Step by Step Solution
- Step 1: Write the proportion equation
1,079,396.80 : 1,617,712.80 = 828,836.80 : x - Step 2: Convert to fraction form
1,079,396.80/1,617,712.80 = 828,836.80/x - Step 3: Cross multiply
1,079,396.80x = 1,617,712.80 × 828,836.80 - Step 4: Simplify right side
1,079,396.80x = 1,340,819,900,471.04 - Step 5: Solve for x
x = 1,340,819,900,471.04/1,079,396.80 - Step 6: Final answer
x = 1,242,193.70
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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.