Finding the Fourth Proportional to 1,188,107.64, 1,639,675.44 and 678,799.08
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Solution
The fourth proportional to 1,188,107.64, 1,639,675.44 and 678,799.08 is: 936,792.38
Step by Step Solution
- Step 1: Write the proportion equation
1,188,107.64 : 1,639,675.44 = 678,799.08 : x - Step 2: Convert to fraction form
1,188,107.64/1,639,675.44 = 678,799.08/x - Step 3: Cross multiply
1,188,107.64x = 1,639,675.44 × 678,799.08 - Step 4: Simplify right side
1,188,107.64x = 1,113,010,180,170.60 - Step 5: Solve for x
x = 1,113,010,180,170.60/1,188,107.64 - Step 6: Final answer
x = 936,792.38
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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.