Finding the Fourth Proportional to 1,638,181.80, 2,457,272.70 and 929,593.80
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Solution
The fourth proportional to 1,638,181.80, 2,457,272.70 and 929,593.80 is: 1,394,390.70
Step by Step Solution
- Step 1: Write the proportion equation
1,638,181.80 : 2,457,272.70 = 929,593.80 : x - Step 2: Convert to fraction form
1,638,181.80/2,457,272.70 = 929,593.80/x - Step 3: Cross multiply
1,638,181.80x = 2,457,272.70 × 929,593.80 - Step 4: Simplify right side
1,638,181.80x = 2,284,265,466,829.26 - Step 5: Solve for x
x = 2,284,265,466,829.26/1,638,181.80 - Step 6: Final answer
x = 1,394,390.70
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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.