Finding the Fourth Proportional to 830,163.80, 1,245,245.70 and 725,187.80
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Solution
The fourth proportional to 830,163.80, 1,245,245.70 and 725,187.80 is: 1,087,781.70
Step by Step Solution
- Step 1: Write the proportion equation
830,163.80 : 1,245,245.70 = 725,187.80 : x - Step 2: Convert to fraction form
830,163.80/1,245,245.70 = 725,187.80/x - Step 3: Cross multiply
830,163.80x = 1,245,245.70 × 725,187.80 - Step 4: Simplify right side
830,163.80x = 903,036,989,642.46 - Step 5: Solve for x
x = 903,036,989,642.46/830,163.80 - Step 6: Final answer
x = 1,087,781.70
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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.