Finding the Fourth Proportional to 1,866,722.28, 2,801,170.86 and 787,168.68
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Solution
The fourth proportional to 1,866,722.28, 2,801,170.86 and 787,168.68 is: 1,181,211.58
Step by Step Solution
- Step 1: Write the proportion equation
1,866,722.28 : 2,801,170.86 = 787,168.68 : x - Step 2: Convert to fraction form
1,866,722.28/2,801,170.86 = 787,168.68/x - Step 3: Cross multiply
1,866,722.28x = 2,801,170.86 × 787,168.68 - Step 4: Simplify right side
1,866,722.28x = 2,204,993,968,320.67 - Step 5: Solve for x
x = 2,204,993,968,320.67/1,866,722.28 - Step 6: Final answer
x = 1,181,211.58
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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.