Finding the Fourth Proportional to 828,509.71, 1,143,107.56 and 497,231.08
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Solution
The fourth proportional to 828,509.71, 1,143,107.56 and 497,231.08 is: 686,037.35
Step by Step Solution
- Step 1: Write the proportion equation
828,509.71 : 1,143,107.56 = 497,231.08 : x - Step 2: Convert to fraction form
828,509.71/1,143,107.56 = 497,231.08/x - Step 3: Cross multiply
828,509.71x = 1,143,107.56 × 497,231.08 - Step 4: Simplify right side
828,509.71x = 568,388,606,614.97 - Step 5: Solve for x
x = 568,388,606,614.97/828,509.71 - Step 6: Final answer
x = 686,037.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.