Finding the Fourth Proportional to 3,171,960.29, 4,377,187.99 and 1,721,624.59
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Solution
The fourth proportional to 3,171,960.29, 4,377,187.99 and 1,721,624.59 is: 2,375,778.31
Step by Step Solution
- Step 1: Write the proportion equation
3,171,960.29 : 4,377,187.99 = 1,721,624.59 : x - Step 2: Convert to fraction form
3,171,960.29/4,377,187.99 = 1,721,624.59/x - Step 3: Cross multiply
3,171,960.29x = 4,377,187.99 × 1,721,624.59 - Step 4: Simplify right side
3,171,960.29x = 7,535,874,458,041.54 - Step 5: Solve for x
x = 7,535,874,458,041.54/3,171,960.29 - Step 6: Final answer
x = 2,375,778.31
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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.