Finding the Fourth Proportional to 1,089,719.26, 1,634,562.48 and 490,257.09
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Solution
The fourth proportional to 1,089,719.26, 1,634,562.48 and 490,257.09 is: 735,378.26
Step by Step Solution
- Step 1: Write the proportion equation
1,089,719.26 : 1,634,562.48 = 490,257.09 : x - Step 2: Convert to fraction form
1,089,719.26/1,634,562.48 = 490,257.09/x - Step 3: Cross multiply
1,089,719.26x = 1,634,562.48 × 490,257.09 - Step 4: Simplify right side
1,089,719.26x = 801,355,846,706.45 - Step 5: Solve for x
x = 801,355,846,706.45/1,089,719.26 - Step 6: Final answer
x = 735,378.26
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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.