Finding the Fourth Proportional to 4,211,917.76, 6,318,664.16 and 1,687,769.84
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Solution
The fourth proportional to 4,211,917.76, 6,318,664.16 and 1,687,769.84 is: 2,531,970.33
Step by Step Solution
- Step 1: Write the proportion equation
4,211,917.76 : 6,318,664.16 = 1,687,769.84 : x - Step 2: Convert to fraction form
4,211,917.76/6,318,664.16 = 1,687,769.84/x - Step 3: Cross multiply
4,211,917.76x = 6,318,664.16 × 1,687,769.84 - Step 4: Simplify right side
4,211,917.76x = 10,664,450,798,336.94 - Step 5: Solve for x
x = 10,664,450,798,336.94/4,211,917.76 - Step 6: Final answer
x = 2,531,970.33
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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.