Finding the Fourth Proportional to 725,079.80, 1,087,619.70 and 305,175.80
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Solution
The fourth proportional to 725,079.80, 1,087,619.70 and 305,175.80 is: 457,763.70
Step by Step Solution
- Step 1: Write the proportion equation
725,079.80 : 1,087,619.70 = 305,175.80 : x - Step 2: Convert to fraction form
725,079.80/1,087,619.70 = 305,175.80/x - Step 3: Cross multiply
725,079.80x = 1,087,619.70 × 305,175.80 - Step 4: Simplify right side
725,079.80x = 331,915,212,043.26 - Step 5: Solve for x
x = 331,915,212,043.26/725,079.80 - Step 6: Final answer
x = 457,763.70
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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.