Finding the Fourth Proportional to 743,528.50, 1,115,290.56 and 211,049.98
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Solution
The fourth proportional to 743,528.50, 1,115,290.56 and 211,049.98 is: 316,574.35
Step by Step Solution
- Step 1: Write the proportion equation
743,528.50 : 1,115,290.56 = 211,049.98 : x - Step 2: Convert to fraction form
743,528.50/1,115,290.56 = 211,049.98/x - Step 3: Cross multiply
743,528.50x = 1,115,290.56 × 211,049.98 - Step 4: Simplify right side
743,528.50x = 235,382,050,382.19 - Step 5: Solve for x
x = 235,382,050,382.19/743,528.50 - Step 6: Final answer
x = 316,574.35
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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.