Finding the Fourth Proportional to 3,785,904.70, 5,678,857.05 and 2,292,912.70
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Solution
The fourth proportional to 3,785,904.70, 5,678,857.05 and 2,292,912.70 is: 3,439,369.05
Step by Step Solution
- Step 1: Write the proportion equation
3,785,904.70 : 5,678,857.05 = 2,292,912.70 : x - Step 2: Convert to fraction form
3,785,904.70/5,678,857.05 = 2,292,912.70/x - Step 3: Cross multiply
3,785,904.70x = 5,678,857.05 × 2,292,912.70 - Step 4: Simplify right side
3,785,904.70x = 13,021,123,451,429.54 - Step 5: Solve for x
x = 13,021,123,451,429.54/3,785,904.70 - Step 6: Final answer
x = 3,439,369.05
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1.5x scale
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.