Finding the Fourth Proportional to 1,638,201.50, 2,457,136.20 and 439,968.14
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Solution
The fourth proportional to 1,638,201.50, 2,457,136.20 and 439,968.14 is: 659,907.61
Step by Step Solution
- Step 1: Write the proportion equation
1,638,201.50 : 2,457,136.20 = 439,968.14 : x - Step 2: Convert to fraction form
1,638,201.50/2,457,136.20 = 439,968.14/x - Step 3: Cross multiply
1,638,201.50x = 2,457,136.20 × 439,968.14 - Step 4: Simplify right side
1,638,201.50x = 1,081,061,643,640.67 - Step 5: Solve for x
x = 1,081,061,643,640.67/1,638,201.50 - Step 6: Final answer
x = 659,907.61
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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.