Finding the Fourth Proportional to 898,979.91, 1,240,629.98 and 517,006.99
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Solution
The fourth proportional to 898,979.91, 1,240,629.98 and 517,006.99 is: 713,491.33
Step by Step Solution
- Step 1: Write the proportion equation
898,979.91 : 1,240,629.98 = 517,006.99 : x - Step 2: Convert to fraction form
898,979.91/1,240,629.98 = 517,006.99/x - Step 3: Cross multiply
898,979.91x = 1,240,629.98 × 517,006.99 - Step 4: Simplify right side
898,979.91x = 641,414,371,663.56 - Step 5: Solve for x
x = 641,414,371,663.56/898,979.91 - Step 6: Final answer
x = 713,491.33
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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.