Finding the Fourth Proportional to 2,953,228.80, 4,431,916.80 and 1,271,539.20
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Solution
The fourth proportional to 2,953,228.80, 4,431,916.80 and 1,271,539.20 is: 1,908,201.61
Step by Step Solution
- Step 1: Write the proportion equation
2,953,228.80 : 4,431,916.80 = 1,271,539.20 : x - Step 2: Convert to fraction form
2,953,228.80/4,431,916.80 = 1,271,539.20/x - Step 3: Cross multiply
2,953,228.80x = 4,431,916.80 × 1,271,539.20 - Step 4: Simplify right side
2,953,228.80x = 5,635,355,942,338.56 - Step 5: Solve for x
x = 5,635,355,942,338.56/2,953,228.80 - Step 6: Final answer
x = 1,908,201.61
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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.