Finding the Fourth Proportional to 1,163,914.21, 1,605,291.68 and 756,147.43
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Solution
The fourth proportional to 1,163,914.21, 1,605,291.68 and 756,147.43 is: 1,042,892.31
Step by Step Solution
- Step 1: Write the proportion equation
1,163,914.21 : 1,605,291.68 = 756,147.43 : x - Step 2: Convert to fraction form
1,163,914.21/1,605,291.68 = 756,147.43/x - Step 3: Cross multiply
1,163,914.21x = 1,605,291.68 × 756,147.43 - Step 4: Simplify right side
1,163,914.21x = 1,213,837,182,390.92 - Step 5: Solve for x
x = 1,213,837,182,390.92/1,163,914.21 - Step 6: Final answer
x = 1,042,892.31
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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.