Finding the Fourth Proportional to 873,957.69, 1,206,083.97 and 491,997.87
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Solution
The fourth proportional to 873,957.69, 1,206,083.97 and 491,997.87 is: 678,969.65
Step by Step Solution
- Step 1: Write the proportion equation
873,957.69 : 1,206,083.97 = 491,997.87 : x - Step 2: Convert to fraction form
873,957.69/1,206,083.97 = 491,997.87/x - Step 3: Cross multiply
873,957.69x = 1,206,083.97 × 491,997.87 - Step 4: Simplify right side
873,957.69x = 593,390,744,281.14 - Step 5: Solve for x
x = 593,390,744,281.14/873,957.69 - Step 6: Final answer
x = 678,969.65
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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.