Finding the Fourth Proportional to 1,126,198.99, 1,554,179.70 and 642,754.44
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Solution
The fourth proportional to 1,126,198.99, 1,554,179.70 and 642,754.44 is: 887,015.45
Step by Step Solution
- Step 1: Write the proportion equation
1,126,198.99 : 1,554,179.70 = 642,754.44 : x - Step 2: Convert to fraction form
1,126,198.99/1,554,179.70 = 642,754.44/x - Step 3: Cross multiply
1,126,198.99x = 1,554,179.70 × 642,754.44 - Step 4: Simplify right side
1,126,198.99x = 998,955,905,143.20 - Step 5: Solve for x
x = 998,955,905,143.20/1,126,198.99 - Step 6: Final answer
x = 887,015.45
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1.5x scale
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.