Finding the Fourth Proportional to 1,742,190.21, 2,405,096.64 and 1,089,179.03
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Solution
The fourth proportional to 1,742,190.21, 2,405,096.64 and 1,089,179.03 is: 1,503,613.55
Step by Step Solution
- Step 1: Write the proportion equation
1,742,190.21 : 2,405,096.64 = 1,089,179.03 : x - Step 2: Convert to fraction form
1,742,190.21/2,405,096.64 = 1,089,179.03/x - Step 3: Cross multiply
1,742,190.21x = 2,405,096.64 × 1,089,179.03 - Step 4: Simplify right side
1,742,190.21x = 2,619,580,813,385.98 - Step 5: Solve for x
x = 2,619,580,813,385.98/1,742,190.21 - Step 6: Final answer
x = 1,503,613.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.