Finding the Fourth Proportional to 744,819.66, 1,115,819.28 and 440,302.08
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Solution
The fourth proportional to 744,819.66, 1,115,819.28 and 440,302.08 is: 659,619.47
Step by Step Solution
- Step 1: Write the proportion equation
744,819.66 : 1,115,819.28 = 440,302.08 : x - Step 2: Convert to fraction form
744,819.66/1,115,819.28 = 440,302.08/x - Step 3: Cross multiply
744,819.66x = 1,115,819.28 × 440,302.08 - Step 4: Simplify right side
744,819.66x = 491,297,549,888.10 - Step 5: Solve for x
x = 491,297,549,888.10/744,819.66 - Step 6: Final answer
x = 659,619.47
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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.