Finding the Fourth Proportional to 3,631,811.20, 5,447,716.80 and 972,419.20
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Solution
The fourth proportional to 3,631,811.20, 5,447,716.80 and 972,419.20 is: 1,458,628.80
Step by Step Solution
- Step 1: Write the proportion equation
3,631,811.20 : 5,447,716.80 = 972,419.20 : x - Step 2: Convert to fraction form
3,631,811.20/5,447,716.80 = 972,419.20/x - Step 3: Cross multiply
3,631,811.20x = 5,447,716.80 × 972,419.20 - Step 4: Simplify right side
3,631,811.20x = 5,297,464,412,482.56 - Step 5: Solve for x
x = 5,297,464,412,482.56/3,631,811.20 - Step 6: Final answer
x = 1,458,628.80
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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.