Finding the Fourth Proportional to 3,685,990.08, 5,531,476.41 and 1,289,855.91
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Solution
The fourth proportional to 3,685,990.08, 5,531,476.41 and 1,289,855.91 is: 1,935,655.65
Step by Step Solution
- Step 1: Write the proportion equation
3,685,990.08 : 5,531,476.41 = 1,289,855.91 : x - Step 2: Convert to fraction form
3,685,990.08/5,531,476.41 = 1,289,855.91/x - Step 3: Cross multiply
3,685,990.08x = 5,531,476.41 × 1,289,855.91 - Step 4: Simplify right side
3,685,990.08x = 7,134,807,538,464.08 - Step 5: Solve for x
x = 7,134,807,538,464.08/3,685,990.08 - Step 6: Final answer
x = 1,935,655.65
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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.