Finding the Fourth Proportional to 1,375,907.76, 1,898,716.44 and 764,041.68
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Solution
The fourth proportional to 1,375,907.76, 1,898,716.44 and 764,041.68 is: 1,054,357.38
Step by Step Solution
- Step 1: Write the proportion equation
1,375,907.76 : 1,898,716.44 = 764,041.68 : x - Step 2: Convert to fraction form
1,375,907.76/1,898,716.44 = 764,041.68/x - Step 3: Cross multiply
1,375,907.76x = 1,898,716.44 × 764,041.68 - Step 4: Simplify right side
1,375,907.76x = 1,450,698,498,661.22 - Step 5: Solve for x
x = 1,450,698,498,661.22/1,375,907.76 - Step 6: Final answer
x = 1,054,357.38
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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.