Finding the Fourth Proportional to 3,171,896.48, 4,377,206.10 and 1,721,591.91
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Solution
The fourth proportional to 3,171,896.48, 4,377,206.10 and 1,721,591.91 is: 2,375,790.84
Step by Step Solution
- Step 1: Write the proportion equation
3,171,896.48 : 4,377,206.10 = 1,721,591.91 : x - Step 2: Convert to fraction form
3,171,896.48/4,377,206.10 = 1,721,591.91/x - Step 3: Cross multiply
3,171,896.48x = 4,377,206.10 × 1,721,591.91 - Step 4: Simplify right side
3,171,896.48x = 7,535,762,610,162.65 - Step 5: Solve for x
x = 7,535,762,610,162.65/3,171,896.48 - Step 6: Final answer
x = 2,375,790.84
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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.