Finding the Fourth Proportional to 1,638,272.81, 2,457,407.92 and 440,195.12
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Solution
The fourth proportional to 1,638,272.81, 2,457,407.92 and 440,195.12 is: 660,292.33
Step by Step Solution
- Step 1: Write the proportion equation
1,638,272.81 : 2,457,407.92 = 440,195.12 : x - Step 2: Convert to fraction form
1,638,272.81/2,457,407.92 = 440,195.12/x - Step 3: Cross multiply
1,638,272.81x = 2,457,407.92 × 440,195.12 - Step 4: Simplify right side
1,638,272.81x = 1,081,738,974,233.35 - Step 5: Solve for x
x = 1,081,738,974,233.35/1,638,272.81 - Step 6: Final answer
x = 660,292.33
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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.