Finding the Fourth Proportional to 2,161,245.53, 2,982,438.23 and 1,243,616.55
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Solution
The fourth proportional to 2,161,245.53, 2,982,438.23 and 1,243,616.55 is: 1,716,144.46
Step by Step Solution
- Step 1: Write the proportion equation
2,161,245.53 : 2,982,438.23 = 1,243,616.55 : x - Step 2: Convert to fraction form
2,161,245.53/2,982,438.23 = 1,243,616.55/x - Step 3: Cross multiply
2,161,245.53x = 2,982,438.23 × 1,243,616.55 - Step 4: Simplify right side
2,161,245.53x = 3,709,009,535,962.62 - Step 5: Solve for x
x = 3,709,009,535,962.62/2,161,245.53 - Step 6: Final answer
x = 1,716,144.46
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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.