Finding the Fourth Proportional to 2,748,249.20, 4,121,207.40 and 1,328,740.40
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Solution
The fourth proportional to 2,748,249.20, 4,121,207.40 and 1,328,740.40 is: 1,992,546.66
Step by Step Solution
- Step 1: Write the proportion equation
2,748,249.20 : 4,121,207.40 = 1,328,740.40 : x - Step 2: Convert to fraction form
2,748,249.20/4,121,207.40 = 1,328,740.40/x - Step 3: Cross multiply
2,748,249.20x = 4,121,207.40 × 1,328,740.40 - Step 4: Simplify right side
2,748,249.20x = 5,476,014,769,158.96 - Step 5: Solve for x
x = 5,476,014,769,158.96/2,748,249.20 - Step 6: Final answer
x = 1,992,546.66
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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.