Finding the Fourth Proportional to 3,172,752.18, 4,378,450.86 and 1,722,447.94
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Solution
The fourth proportional to 3,172,752.18, 4,378,450.86 and 1,722,447.94 is: 2,377,006.85
Step by Step Solution
- Step 1: Write the proportion equation
3,172,752.18 : 4,378,450.86 = 1,722,447.94 : x - Step 2: Convert to fraction form
3,172,752.18/4,378,450.86 = 1,722,447.94/x - Step 3: Cross multiply
3,172,752.18x = 4,378,450.86 × 1,722,447.94 - Step 4: Simplify right side
3,172,752.18x = 7,541,653,664,198.23 - Step 5: Solve for x
x = 7,541,653,664,198.23/3,172,752.18 - Step 6: Final answer
x = 2,377,006.85
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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.