Finding the Fourth Proportional to 3,939,564, 5,439,128.61 and 2,471,485.37
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Solution
The fourth proportional to 3,939,564, 5,439,128.61 and 2,471,485.37 is: 3,412,237.19
Step by Step Solution
- Step 1: Write the proportion equation
3,939,564 : 5,439,128.61 = 2,471,485.37 : x - Step 2: Convert to fraction form
3,939,564/5,439,128.61 = 2,471,485.37/x - Step 3: Cross multiply
3,939,564x = 5,439,128.61 × 2,471,485.37 - Step 4: Simplify right side
3,939,564x = 13,442,726,785,163.44 - Step 5: Solve for x
x = 13,442,726,785,163.44/3,939,564 - Step 6: Final answer
x = 3,412,237.19
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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.