Finding the Fourth Proportional to 752,141.80, 1,128,212.70 and 699,653.80
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Solution
The fourth proportional to 752,141.80, 1,128,212.70 and 699,653.80 is: 1,049,480.70
Step by Step Solution
- Step 1: Write the proportion equation
752,141.80 : 1,128,212.70 = 699,653.80 : x - Step 2: Convert to fraction form
752,141.80/1,128,212.70 = 699,653.80/x - Step 3: Cross multiply
752,141.80x = 1,128,212.70 × 699,653.80 - Step 4: Simplify right side
752,141.80x = 789,358,302,763.26 - Step 5: Solve for x
x = 789,358,302,763.26/752,141.80 - Step 6: Final answer
x = 1,049,480.70
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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.