Finding the Fourth Proportional to 2,196,353.28, 3,030,968.79 and 1,229,485.44
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Solution
The fourth proportional to 2,196,353.28, 3,030,968.79 and 1,229,485.44 is: 1,696,690.61
Step by Step Solution
- Step 1: Write the proportion equation
2,196,353.28 : 3,030,968.79 = 1,229,485.44 : x - Step 2: Convert to fraction form
2,196,353.28/3,030,968.79 = 1,229,485.44/x - Step 3: Cross multiply
2,196,353.28x = 3,030,968.79 × 1,229,485.44 - Step 4: Simplify right side
2,196,353.28x = 3,726,531,996,399.42 - Step 5: Solve for x
x = 3,726,531,996,399.42/2,196,353.28 - Step 6: Final answer
x = 1,696,690.61
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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.