Finding the Fourth Proportional to 2,070,890.46, 2,858,710.68 and 1,392,220.62
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Solution
The fourth proportional to 2,070,890.46, 2,858,710.68 and 1,392,220.62 is: 1,921,857.30
Step by Step Solution
- Step 1: Write the proportion equation
2,070,890.46 : 2,858,710.68 = 1,392,220.62 : x - Step 2: Convert to fraction form
2,070,890.46/2,858,710.68 = 1,392,220.62/x - Step 3: Cross multiply
2,070,890.46x = 2,858,710.68 × 1,392,220.62 - Step 4: Simplify right side
2,070,890.46x = 3,979,955,955,310.22 - Step 5: Solve for x
x = 3,979,955,955,310.22/2,070,890.46 - Step 6: Final answer
x = 1,921,857.30
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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.