Finding the Fourth Proportional to 793,499.12, 1,189,731.36 and 287,964.80
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Solution
The fourth proportional to 793,499.12, 1,189,731.36 and 287,964.80 is: 431,759.46
Step by Step Solution
- Step 1: Write the proportion equation
793,499.12 : 1,189,731.36 = 287,964.80 : x - Step 2: Convert to fraction form
793,499.12/1,189,731.36 = 287,964.80/x - Step 3: Cross multiply
793,499.12x = 1,189,731.36 × 287,964.80 - Step 4: Simplify right side
793,499.12x = 342,600,753,136.13 - Step 5: Solve for x
x = 342,600,753,136.13/793,499.12 - Step 6: Final answer
x = 431,759.46
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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.