Finding the Fourth Proportional to 678,282.26, 1,016,649.44 and 273,215.09
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Solution
The fourth proportional to 678,282.26, 1,016,649.44 and 273,215.09 is: 409,510.88
Step by Step Solution
- Step 1: Write the proportion equation
678,282.26 : 1,016,649.44 = 273,215.09 : x - Step 2: Convert to fraction form
678,282.26/1,016,649.44 = 273,215.09/x - Step 3: Cross multiply
678,282.26x = 1,016,649.44 × 273,215.09 - Step 4: Simplify right side
678,282.26x = 277,763,963,847.84 - Step 5: Solve for x
x = 277,763,963,847.84/678,282.26 - Step 6: Final answer
x = 409,510.88
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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.