Finding the Fourth Proportional to 2,081,912.70, 3,118,203.45 and 1,708,664.70
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Solution
The fourth proportional to 2,081,912.70, 3,118,203.45 and 1,708,664.70 is: 2,559,167.90
Step by Step Solution
- Step 1: Write the proportion equation
2,081,912.70 : 3,118,203.45 = 1,708,664.70 : x - Step 2: Convert to fraction form
2,081,912.70/3,118,203.45 = 1,708,664.70/x - Step 3: Cross multiply
2,081,912.70x = 3,118,203.45 × 1,708,664.70 - Step 4: Simplify right side
2,081,912.70x = 5,327,964,162,433.22 - Step 5: Solve for x
x = 5,327,964,162,433.22/2,081,912.70 - Step 6: Final answer
x = 2,559,167.90
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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.