Finding the Fourth Proportional to 5,255,969.80, 7,883,954.70 and 4,193,087.80
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Solution
The fourth proportional to 5,255,969.80, 7,883,954.70 and 4,193,087.80 is: 6,289,631.70
Step by Step Solution
- Step 1: Write the proportion equation
5,255,969.80 : 7,883,954.70 = 4,193,087.80 : x - Step 2: Convert to fraction form
5,255,969.80/7,883,954.70 = 4,193,087.80/x - Step 3: Cross multiply
5,255,969.80x = 7,883,954.70 × 4,193,087.80 - Step 4: Simplify right side
5,255,969.80x = 33,058,114,268,322.66 - Step 5: Solve for x
x = 33,058,114,268,322.66/5,255,969.80 - Step 6: Final answer
x = 6,289,631.70
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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.