Finding the Fourth Proportional to 2,070,878.96, 2,858,694.74 and 1,392,209.12
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Solution
The fourth proportional to 2,070,878.96, 2,858,694.74 and 1,392,209.12 is: 1,921,841.38
Step by Step Solution
- Step 1: Write the proportion equation
2,070,878.96 : 2,858,694.74 = 1,392,209.12 : x - Step 2: Convert to fraction form
2,070,878.96/2,858,694.74 = 1,392,209.12/x - Step 3: Cross multiply
2,070,878.96x = 2,858,694.74 × 1,392,209.12 - Step 4: Simplify right side
2,070,878.96x = 3,979,900,888,324.03 - Step 5: Solve for x
x = 3,979,900,888,324.03/2,070,878.96 - Step 6: Final answer
x = 1,921,841.38
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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.