Finding the Fourth Proportional to 726,817.99, 1,090,141.13 and 194,380.29
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Solution
The fourth proportional to 726,817.99, 1,090,141.13 and 194,380.29 is: 291,547.47
Step by Step Solution
- Step 1: Write the proportion equation
726,817.99 : 1,090,141.13 = 194,380.29 : x - Step 2: Convert to fraction form
726,817.99/1,090,141.13 = 194,380.29/x - Step 3: Cross multiply
726,817.99x = 1,090,141.13 × 194,380.29 - Step 4: Simplify right side
726,817.99x = 211,901,948,990.33 - Step 5: Solve for x
x = 211,901,948,990.33/726,817.99 - Step 6: Final answer
x = 291,547.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.