Finding the Fourth Proportional to 2,039,894.68, 2,815,107.20 and 1,122,147.40
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Solution
The fourth proportional to 2,039,894.68, 2,815,107.20 and 1,122,147.40 is: 1,548,592.32
Step by Step Solution
- Step 1: Write the proportion equation
2,039,894.68 : 2,815,107.20 = 1,122,147.40 : x - Step 2: Convert to fraction form
2,039,894.68/2,815,107.20 = 1,122,147.40/x - Step 3: Cross multiply
2,039,894.68x = 2,815,107.20 × 1,122,147.40 - Step 4: Simplify right side
2,039,894.68x = 3,158,965,225,201.28 - Step 5: Solve for x
x = 3,158,965,225,201.28/2,039,894.68 - Step 6: Final answer
x = 1,548,592.32
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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.