Finding the Fourth Proportional to 2,070,873.95, 2,858,687.84 and 1,392,204.11
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Solution
The fourth proportional to 2,070,873.95, 2,858,687.84 and 1,392,204.11 is: 1,921,834.48
Step by Step Solution
- Step 1: Write the proportion equation
2,070,873.95 : 2,858,687.84 = 1,392,204.11 : x - Step 2: Convert to fraction form
2,070,873.95/2,858,687.84 = 1,392,204.11/x - Step 3: Cross multiply
2,070,873.95x = 2,858,687.84 × 1,392,204.11 - Step 4: Simplify right side
2,070,873.95x = 3,979,876,949,242.09 - Step 5: Solve for x
x = 3,979,876,949,242.09/2,070,873.95 - Step 6: Final answer
x = 1,921,834.48
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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.