Finding the Fourth Proportional to 1,393,408.19, 2,089,610.79 and 482,343.12
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Solution
The fourth proportional to 1,393,408.19, 2,089,610.79 and 482,343.12 is: 723,341.08
Step by Step Solution
- Step 1: Write the proportion equation
1,393,408.19 : 2,089,610.79 = 482,343.12 : x - Step 2: Convert to fraction form
1,393,408.19/2,089,610.79 = 482,343.12/x - Step 3: Cross multiply
1,393,408.19x = 2,089,610.79 × 482,343.12 - Step 4: Simplify right side
1,393,408.19x = 1,007,909,378,766.52 - Step 5: Solve for x
x = 1,007,909,378,766.52/1,393,408.19 - Step 6: Final answer
x = 723,341.08
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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.