Finding the Fourth Proportional to 1,427,996.36, 2,142,554.66 and 628,717.26
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Solution
The fourth proportional to 1,427,996.36, 2,142,554.66 and 628,717.26 is: 943,322.50
Step by Step Solution
- Step 1: Write the proportion equation
1,427,996.36 : 2,142,554.66 = 628,717.26 : x - Step 2: Convert to fraction form
1,427,996.36/2,142,554.66 = 628,717.26/x - Step 3: Cross multiply
1,427,996.36x = 2,142,554.66 × 628,717.26 - Step 4: Simplify right side
1,427,996.36x = 1,347,061,095,235.43 - Step 5: Solve for x
x = 1,347,061,095,235.43/1,427,996.36 - Step 6: Final answer
x = 943,322.50
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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.