Finding the Fourth Proportional to 1,294,027.40, 1,942,790.70 and 821,635.40
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Solution
The fourth proportional to 1,294,027.40, 1,942,790.70 and 821,635.40 is: 1,233,564.00
Step by Step Solution
- Step 1: Write the proportion equation
1,294,027.40 : 1,942,790.70 = 821,635.40 : x - Step 2: Convert to fraction form
1,294,027.40/1,942,790.70 = 821,635.40/x - Step 3: Cross multiply
1,294,027.40x = 1,942,790.70 × 821,635.40 - Step 4: Simplify right side
1,294,027.40x = 1,596,265,613,910.78 - Step 5: Solve for x
x = 1,596,265,613,910.78/1,294,027.40 - Step 6: Final answer
x = 1,233,564.00
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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.