Finding the Fourth Proportional to 811,195.99, 1,215,935.92 and 305,538.18
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Solution
The fourth proportional to 811,195.99, 1,215,935.92 and 305,538.18 is: 457,984.07
Step by Step Solution
- Step 1: Write the proportion equation
811,195.99 : 1,215,935.92 = 305,538.18 : x - Step 2: Convert to fraction form
811,195.99/1,215,935.92 = 305,538.18/x - Step 3: Cross multiply
811,195.99x = 1,215,935.92 × 305,538.18 - Step 4: Simplify right side
811,195.99x = 371,514,843,815.59 - Step 5: Solve for x
x = 371,514,843,815.59/811,195.99 - Step 6: Final answer
x = 457,984.07
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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.