Finding the Fourth Proportional to 1,555,342.62, 2,146,372.92 and 839,950.62
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Solution
The fourth proportional to 1,555,342.62, 2,146,372.92 and 839,950.62 is: 1,159,131.91
Step by Step Solution
- Step 1: Write the proportion equation
1,555,342.62 : 2,146,372.92 = 839,950.62 : x - Step 2: Convert to fraction form
1,555,342.62/2,146,372.92 = 839,950.62/x - Step 3: Cross multiply
1,555,342.62x = 2,146,372.92 × 839,950.62 - Step 4: Simplify right side
1,555,342.62x = 1,802,847,264,905.21 - Step 5: Solve for x
x = 1,802,847,264,905.21/1,555,342.62 - Step 6: Final answer
x = 1,159,131.91
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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.