Finding the Fourth Proportional to 2,379,872.14, 3,286,927.60 and 1,604,165.11
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Solution
The fourth proportional to 2,379,872.14, 3,286,927.60 and 1,604,165.11 is: 2,215,570.53
Step by Step Solution
- Step 1: Write the proportion equation
2,379,872.14 : 3,286,927.60 = 1,604,165.11 : x - Step 2: Convert to fraction form
2,379,872.14/3,286,927.60 = 1,604,165.11/x - Step 3: Cross multiply
2,379,872.14x = 3,286,927.60 × 1,604,165.11 - Step 4: Simplify right side
2,379,872.14x = 5,272,774,558,581.40 - Step 5: Solve for x
x = 5,272,774,558,581.40/2,379,872.14 - Step 6: Final answer
x = 2,215,570.53
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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.