Finding the Fourth Proportional to 2,489,626.83, 3,435,790.67 and 1,387,057.31
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Solution
The fourth proportional to 2,489,626.83, 3,435,790.67 and 1,387,057.31 is: 1,914,197.95
Step by Step Solution
- Step 1: Write the proportion equation
2,489,626.83 : 3,435,790.67 = 1,387,057.31 : x - Step 2: Convert to fraction form
2,489,626.83/3,435,790.67 = 1,387,057.31/x - Step 3: Cross multiply
2,489,626.83x = 3,435,790.67 × 1,387,057.31 - Step 4: Simplify right side
2,489,626.83x = 4,765,638,577,751.06 - Step 5: Solve for x
x = 4,765,638,577,751.06/2,489,626.83 - Step 6: Final answer
x = 1,914,197.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.