Finding the Fourth Proportional to 2,762,993.60, 3,811,471.62 and 1,902,059.18
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Solution
The fourth proportional to 2,762,993.60, 3,811,471.62 and 1,902,059.18 is: 2,623,836.91
Step by Step Solution
- Step 1: Write the proportion equation
2,762,993.60 : 3,811,471.62 = 1,902,059.18 : x - Step 2: Convert to fraction form
2,762,993.60/3,811,471.62 = 1,902,059.18/x - Step 3: Cross multiply
2,762,993.60x = 3,811,471.62 × 1,902,059.18 - Step 4: Simplify right side
2,762,993.60x = 7,249,644,586,526.43 - Step 5: Solve for x
x = 7,249,644,586,526.43/2,762,993.60 - Step 6: Final answer
x = 2,623,836.91
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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.