Finding the Fourth Proportional to 707,815.68, 1,061,425.44 and 286,797.12
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Solution
The fourth proportional to 707,815.68, 1,061,425.44 and 286,797.12 is: 430,074.90
Step by Step Solution
- Step 1: Write the proportion equation
707,815.68 : 1,061,425.44 = 286,797.12 : x - Step 2: Convert to fraction form
707,815.68/1,061,425.44 = 286,797.12/x - Step 3: Cross multiply
707,815.68x = 1,061,425.44 × 286,797.12 - Step 4: Simplify right side
707,815.68x = 304,413,759,286.73 - Step 5: Solve for x
x = 304,413,759,286.73/707,815.68 - Step 6: Final answer
x = 430,074.90
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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.