Finding the Fourth Proportional to 1,420,305.36, 1,960,010.88 and 775,725.84
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Solution
The fourth proportional to 1,420,305.36, 1,960,010.88 and 775,725.84 is: 1,070,495.92
Step by Step Solution
- Step 1: Write the proportion equation
1,420,305.36 : 1,960,010.88 = 775,725.84 : x - Step 2: Convert to fraction form
1,420,305.36/1,960,010.88 = 775,725.84/x - Step 3: Cross multiply
1,420,305.36x = 1,960,010.88 × 775,725.84 - Step 4: Simplify right side
1,420,305.36x = 1,520,431,086,297.14 - Step 5: Solve for x
x = 1,520,431,086,297.14/1,420,305.36 - Step 6: Final answer
x = 1,070,495.92
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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.