Finding the Fourth Proportional to 3,939,734.97, 5,909,783.56 and 1,207,086.68
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Solution
The fourth proportional to 3,939,734.97, 5,909,783.56 and 1,207,086.68 is: 1,810,685.51
Step by Step Solution
- Step 1: Write the proportion equation
3,939,734.97 : 5,909,783.56 = 1,207,086.68 : x - Step 2: Convert to fraction form
3,939,734.97/5,909,783.56 = 1,207,086.68/x - Step 3: Cross multiply
3,939,734.97x = 5,909,783.56 × 1,207,086.68 - Step 4: Simplify right side
3,939,734.97x = 7,133,621,028,715.72 - Step 5: Solve for x
x = 7,133,621,028,715.72/3,939,734.97 - Step 6: Final answer
x = 1,810,685.51
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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.