Finding the Fourth Proportional to 2,728,619.80, 4,092,929.70 and 930,905.80
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Solution
The fourth proportional to 2,728,619.80, 4,092,929.70 and 930,905.80 is: 1,396,358.70
Step by Step Solution
- Step 1: Write the proportion equation
2,728,619.80 : 4,092,929.70 = 930,905.80 : x - Step 2: Convert to fraction form
2,728,619.80/4,092,929.70 = 930,905.80/x - Step 3: Cross multiply
2,728,619.80x = 4,092,929.70 × 930,905.80 - Step 4: Simplify right side
2,728,619.80x = 3,810,131,996,722.26 - Step 5: Solve for x
x = 3,810,131,996,722.26/2,728,619.80 - Step 6: Final answer
x = 1,396,358.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.