Finding the Fourth Proportional to 2,255,217.09, 3,112,379.24 and 1,275,362.47
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Solution
The fourth proportional to 2,255,217.09, 3,112,379.24 and 1,275,362.47 is: 1,760,101.80
Step by Step Solution
- Step 1: Write the proportion equation
2,255,217.09 : 3,112,379.24 = 1,275,362.47 : x - Step 2: Convert to fraction form
2,255,217.09/3,112,379.24 = 1,275,362.47/x - Step 3: Cross multiply
2,255,217.09x = 3,112,379.24 × 1,275,362.47 - Step 4: Simplify right side
2,255,217.09x = 3,969,411,655,109.65 - Step 5: Solve for x
x = 3,969,411,655,109.65/2,255,217.09 - Step 6: Final answer
x = 1,760,101.80
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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.