Finding the Fourth Proportional to 892,455.68, 1,338,759.12 and 285,331.52
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Solution
The fourth proportional to 892,455.68, 1,338,759.12 and 285,331.52 is: 428,021.45
Step by Step Solution
- Step 1: Write the proportion equation
892,455.68 : 1,338,759.12 = 285,331.52 : x - Step 2: Convert to fraction form
892,455.68/1,338,759.12 = 285,331.52/x - Step 3: Cross multiply
892,455.68x = 1,338,759.12 × 285,331.52 - Step 4: Simplify right side
892,455.68x = 381,990,174,623.46 - Step 5: Solve for x
x = 381,990,174,623.46/892,455.68 - Step 6: Final answer
x = 428,021.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.