Finding the Fourth Proportional to 3,171,596.69, 4,376,836.14 and 1,721,304.65
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Solution
The fourth proportional to 3,171,596.69, 4,376,836.14 and 1,721,304.65 is: 2,375,418.17
Step by Step Solution
- Step 1: Write the proportion equation
3,171,596.69 : 4,376,836.14 = 1,721,304.65 : x - Step 2: Convert to fraction form
3,171,596.69/4,376,836.14 = 1,721,304.65/x - Step 3: Cross multiply
3,171,596.69x = 4,376,836.14 × 1,721,304.65 - Step 4: Simplify right side
3,171,596.69x = 7,533,868,400,070.05 - Step 5: Solve for x
x = 7,533,868,400,070.05/3,171,596.69 - Step 6: Final answer
x = 2,375,418.17
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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.