Finding the Fourth Proportional to 2,078,269.20, 2,868,664.68 and 1,219,176.72
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Solution
The fourth proportional to 2,078,269.20, 2,868,664.68 and 1,219,176.72 is: 1,682,847.05
Step by Step Solution
- Step 1: Write the proportion equation
2,078,269.20 : 2,868,664.68 = 1,219,176.72 : x - Step 2: Convert to fraction form
2,078,269.20/2,868,664.68 = 1,219,176.72/x - Step 3: Cross multiply
2,078,269.20x = 2,868,664.68 × 1,219,176.72 - Step 4: Simplify right side
2,078,269.20x = 3,497,409,195,342.25 - Step 5: Solve for x
x = 3,497,409,195,342.25/2,078,269.20 - Step 6: Final answer
x = 1,682,847.05
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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.