Finding the Fourth Proportional to 1,120,369.80, 1,680,554.70 and 923,539.80
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Solution
The fourth proportional to 1,120,369.80, 1,680,554.70 and 923,539.80 is: 1,385,309.70
Step by Step Solution
- Step 1: Write the proportion equation
1,120,369.80 : 1,680,554.70 = 923,539.80 : x - Step 2: Convert to fraction form
1,120,369.80/1,680,554.70 = 923,539.80/x - Step 3: Cross multiply
1,120,369.80x = 1,680,554.70 × 923,539.80 - Step 4: Simplify right side
1,120,369.80x = 1,552,059,151,527.06 - Step 5: Solve for x
x = 1,552,059,151,527.06/1,120,369.80 - Step 6: Final answer
x = 1,385,309.70
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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.