Finding the Fourth Proportional to 849,728.09, 1,172,651.18 and 462,569.29
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Solution
The fourth proportional to 849,728.09, 1,172,651.18 and 462,569.29 is: 638,359.99
Step by Step Solution
- Step 1: Write the proportion equation
849,728.09 : 1,172,651.18 = 462,569.29 : x - Step 2: Convert to fraction form
849,728.09/1,172,651.18 = 462,569.29/x - Step 3: Cross multiply
849,728.09x = 1,172,651.18 × 462,569.29 - Step 4: Simplify right side
849,728.09x = 542,432,418,505.79 - Step 5: Solve for x
x = 542,432,418,505.79/849,728.09 - Step 6: Final answer
x = 638,359.99
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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.