Finding the Fourth Proportional to 1,122,369.87, 1,683,803.58 and 323,589.09
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Solution
The fourth proportional to 1,122,369.87, 1,683,803.58 and 323,589.09 is: 485,455.36
Step by Step Solution
- Step 1: Write the proportion equation
1,122,369.87 : 1,683,803.58 = 323,589.09 : x - Step 2: Convert to fraction form
1,122,369.87/1,683,803.58 = 323,589.09/x - Step 3: Cross multiply
1,122,369.87x = 1,683,803.58 × 323,589.09 - Step 4: Simplify right side
1,122,369.87x = 544,860,468,190.94 - Step 5: Solve for x
x = 544,860,468,190.94/1,122,369.87 - Step 6: Final answer
x = 485,455.36
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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.