Finding the Fourth Proportional to 1,135,415.12, 1,701,194.72 and 685,189.94
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Solution
The fourth proportional to 1,135,415.12, 1,701,194.72 and 685,189.94 is: 1,026,621.44
Step by Step Solution
- Step 1: Write the proportion equation
1,135,415.12 : 1,701,194.72 = 685,189.94 : x - Step 2: Convert to fraction form
1,135,415.12/1,701,194.72 = 685,189.94/x - Step 3: Cross multiply
1,135,415.12x = 1,701,194.72 × 685,189.94 - Step 4: Simplify right side
1,135,415.12x = 1,165,641,496,193.19 - Step 5: Solve for x
x = 1,165,641,496,193.19/1,135,415.12 - Step 6: Final answer
x = 1,026,621.44
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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.