Finding the Fourth Proportional to 1,129,876.40, 1,694,842.68 and 331,073.84
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Solution
The fourth proportional to 1,129,876.40, 1,694,842.68 and 331,073.84 is: 496,618.99
Step by Step Solution
- Step 1: Write the proportion equation
1,129,876.40 : 1,694,842.68 = 331,073.84 : x - Step 2: Convert to fraction form
1,129,876.40/1,694,842.68 = 331,073.84/x - Step 3: Cross multiply
1,129,876.40x = 1,694,842.68 × 331,073.84 - Step 4: Simplify right side
1,129,876.40x = 561,118,074,263.49 - Step 5: Solve for x
x = 561,118,074,263.49/1,129,876.40 - Step 6: Final answer
x = 496,618.99
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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.