Finding the Fourth Proportional to 1,638,271.81, 2,457,406.42 and 440,194.12
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Solution
The fourth proportional to 1,638,271.81, 2,457,406.42 and 440,194.12 is: 660,290.84
Step by Step Solution
- Step 1: Write the proportion equation
1,638,271.81 : 2,457,406.42 = 440,194.12 : x - Step 2: Convert to fraction form
1,638,271.81/2,457,406.42 = 440,194.12/x - Step 3: Cross multiply
1,638,271.81x = 2,457,406.42 × 440,194.12 - Step 4: Simplify right side
1,638,271.81x = 1,081,735,863,113.16 - Step 5: Solve for x
x = 1,081,735,863,113.16/1,638,271.81 - Step 6: Final answer
x = 660,290.84
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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.