Finding the Fourth Proportional to 3,171,519, 4,376,698.47 and 1,721,214.09
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Solution
The fourth proportional to 3,171,519, 4,376,698.47 and 1,721,214.09 is: 2,375,276.67
Step by Step Solution
- Step 1: Write the proportion equation
3,171,519 : 4,376,698.47 = 1,721,214.09 : x - Step 2: Convert to fraction form
3,171,519/4,376,698.47 = 1,721,214.09/x - Step 3: Cross multiply
3,171,519x = 4,376,698.47 × 1,721,214.09 - Step 4: Simplify right side
3,171,519x = 7,533,235,074,245.44 - Step 5: Solve for x
x = 7,533,235,074,245.44/3,171,519 - Step 6: Final answer
x = 2,375,276.67
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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.