Finding the Fourth Proportional to 3,478,939.12, 4,801,460.76 and 2,121,599.44
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Solution
The fourth proportional to 3,478,939.12, 4,801,460.76 and 2,121,599.44 is: 2,928,127.26
Step by Step Solution
- Step 1: Write the proportion equation
3,478,939.12 : 4,801,460.76 = 2,121,599.44 : x - Step 2: Convert to fraction form
3,478,939.12/4,801,460.76 = 2,121,599.44/x - Step 3: Cross multiply
3,478,939.12x = 4,801,460.76 × 2,121,599.44 - Step 4: Simplify right side
3,478,939.12x = 10,186,776,459,597.97 - Step 5: Solve for x
x = 10,186,776,459,597.97/3,478,939.12 - Step 6: Final answer
x = 2,928,127.26
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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.