Finding the Fourth Proportional to 985,750.80, 1,481,736.60 and 911,101.20
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Solution
The fourth proportional to 985,750.80, 1,481,736.60 and 911,101.20 is: 1,369,526.65
Step by Step Solution
- Step 1: Write the proportion equation
985,750.80 : 1,481,736.60 = 911,101.20 : x - Step 2: Convert to fraction form
985,750.80/1,481,736.60 = 911,101.20/x - Step 3: Cross multiply
985,750.80x = 1,481,736.60 × 911,101.20 - Step 4: Simplify right side
985,750.80x = 1,350,011,994,343.92 - Step 5: Solve for x
x = 1,350,011,994,343.92/985,750.80 - Step 6: Final answer
x = 1,369,526.65
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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.