Finding the Fourth Proportional to 4,972,685.68, 7,458,289.46 and 1,378,077.84
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Solution
The fourth proportional to 4,972,685.68, 7,458,289.46 and 1,378,077.84 is: 2,066,911.94
Step by Step Solution
- Step 1: Write the proportion equation
4,972,685.68 : 7,458,289.46 = 1,378,077.84 : x - Step 2: Convert to fraction form
4,972,685.68/7,458,289.46 = 1,378,077.84/x - Step 3: Cross multiply
4,972,685.68x = 7,458,289.46 × 1,378,077.84 - Step 4: Simplify right side
4,972,685.68x = 10,278,103,429,131.57 - Step 5: Solve for x
x = 10,278,103,429,131.57/4,972,685.68 - Step 6: Final answer
x = 2,066,911.94
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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.