Finding the Fourth Proportional to 2,821,223.14, 3,894,479.65 and 1,904,693.65
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Solution
The fourth proportional to 2,821,223.14, 3,894,479.65 and 1,904,693.65 is: 2,629,281.80
Step by Step Solution
- Step 1: Write the proportion equation
2,821,223.14 : 3,894,479.65 = 1,904,693.65 : x - Step 2: Convert to fraction form
2,821,223.14/3,894,479.65 = 1,904,693.65/x - Step 3: Cross multiply
2,821,223.14x = 3,894,479.65 × 1,904,693.65 - Step 4: Simplify right side
2,821,223.14x = 7,417,790,659,409.22 - Step 5: Solve for x
x = 7,417,790,659,409.22/2,821,223.14 - Step 6: Final answer
x = 2,629,281.80
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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.