Finding the Fourth Proportional to 988,493.12, 1,482,843.36 and 323,696.96
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Solution
The fourth proportional to 988,493.12, 1,482,843.36 and 323,696.96 is: 485,579.39
Step by Step Solution
- Step 1: Write the proportion equation
988,493.12 : 1,482,843.36 = 323,696.96 : x - Step 2: Convert to fraction form
988,493.12/1,482,843.36 = 323,696.96/x - Step 3: Cross multiply
988,493.12x = 1,482,843.36 × 323,696.96 - Step 4: Simplify right side
988,493.12x = 479,991,887,788.19 - Step 5: Solve for x
x = 479,991,887,788.19/988,493.12 - Step 6: Final answer
x = 485,579.39
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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.