Finding the Fourth Proportional to 2,821,251.12, 3,894,518.24 and 1,904,721.58
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Solution
The fourth proportional to 2,821,251.12, 3,894,518.24 and 1,904,721.58 is: 2,629,320.33
Step by Step Solution
- Step 1: Write the proportion equation
2,821,251.12 : 3,894,518.24 = 1,904,721.58 : x - Step 2: Convert to fraction form
2,821,251.12/3,894,518.24 = 1,904,721.58/x - Step 3: Cross multiply
2,821,251.12x = 3,894,518.24 × 1,904,721.58 - Step 4: Simplify right side
2,821,251.12x = 7,417,972,935,431.62 - Step 5: Solve for x
x = 7,417,972,935,431.62/2,821,251.12 - Step 6: Final answer
x = 2,629,320.33
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1.5x scale
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.