Finding the Fourth Proportional to 1,322,730.84, 1,975,112.70 and 1,286,858.64
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Solution
The fourth proportional to 1,322,730.84, 1,975,112.70 and 1,286,858.64 is: 1,921,548.03
Step by Step Solution
- Step 1: Write the proportion equation
1,322,730.84 : 1,975,112.70 = 1,286,858.64 : x - Step 2: Convert to fraction form
1,322,730.84/1,975,112.70 = 1,286,858.64/x - Step 3: Cross multiply
1,322,730.84x = 1,975,112.70 × 1,286,858.64 - Step 4: Simplify right side
1,322,730.84x = 2,541,690,842,968.73 - Step 5: Solve for x
x = 2,541,690,842,968.73/1,322,730.84 - Step 6: Final answer
x = 1,921,548.03
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.