Finding the Fourth Proportional to 1,178,178.65, 1,763,780.33 and 727,450.26
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Solution
The fourth proportional to 1,178,178.65, 1,763,780.33 and 727,450.26 is: 1,089,021.99
Step by Step Solution
- Step 1: Write the proportion equation
1,178,178.65 : 1,763,780.33 = 727,450.26 : x - Step 2: Convert to fraction form
1,178,178.65/1,763,780.33 = 727,450.26/x - Step 3: Cross multiply
1,178,178.65x = 1,763,780.33 × 727,450.26 - Step 4: Simplify right side
1,178,178.65x = 1,283,062,456,004.13 - Step 5: Solve for x
x = 1,283,062,456,004.13/1,178,178.65 - Step 6: Final answer
x = 1,089,021.99
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1.5x scale
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.