Finding the Fourth Proportional to 2,118,201.40, 3,177,302.10 and 1,222,406.20
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Solution
The fourth proportional to 2,118,201.40, 3,177,302.10 and 1,222,406.20 is: 1,833,609.30
Step by Step Solution
- Step 1: Write the proportion equation
2,118,201.40 : 3,177,302.10 = 1,222,406.20 : x - Step 2: Convert to fraction form
2,118,201.40/3,177,302.10 = 1,222,406.20/x - Step 3: Cross multiply
2,118,201.40x = 3,177,302.10 × 1,222,406.20 - Step 4: Simplify right side
2,118,201.40x = 3,883,953,786,313.02 - Step 5: Solve for x
x = 3,883,953,786,313.02/2,118,201.40 - Step 6: Final answer
x = 1,833,609.30
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1.5x scale
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.