Finding the Fourth Proportional to 1,122,805.80, 1,685,763.90 and 886,415.40
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Solution
The fourth proportional to 1,122,805.80, 1,685,763.90 and 886,415.40 is: 1,330,850.88
Step by Step Solution
- Step 1: Write the proportion equation
1,122,805.80 : 1,685,763.90 = 886,415.40 : x - Step 2: Convert to fraction form
1,122,805.80/1,685,763.90 = 886,415.40/x - Step 3: Cross multiply
1,122,805.80x = 1,685,763.90 × 886,415.40 - Step 4: Simplify right side
1,122,805.80x = 1,494,287,081,724.06 - Step 5: Solve for x
x = 1,494,287,081,724.06/1,122,805.80 - Step 6: Final answer
x = 1,330,850.88
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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.