Finding the Fourth Proportional to 2,890,355.20, 3,988,935.20 and 1,601,599.84
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Solution
The fourth proportional to 2,890,355.20, 3,988,935.20 and 1,601,599.84 is: 2,210,343.55
Step by Step Solution
- Step 1: Write the proportion equation
2,890,355.20 : 3,988,935.20 = 1,601,599.84 : x - Step 2: Convert to fraction form
2,890,355.20/3,988,935.20 = 1,601,599.84/x - Step 3: Cross multiply
2,890,355.20x = 3,988,935.20 × 1,601,599.84 - Step 4: Simplify right side
2,890,355.20x = 6,388,677,978,090.37 - Step 5: Solve for x
x = 6,388,677,978,090.37/2,890,355.20 - Step 6: Final answer
x = 2,210,343.55
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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.