Finding the Fourth Proportional to 1,153,120.21, 1,729,686.46 and 756,274.05
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Solution
The fourth proportional to 1,153,120.21, 1,729,686.46 and 756,274.05 is: 1,134,415.11
Step by Step Solution
- Step 1: Write the proportion equation
1,153,120.21 : 1,729,686.46 = 756,274.05 : x - Step 2: Convert to fraction form
1,153,120.21/1,729,686.46 = 756,274.05/x - Step 3: Cross multiply
1,153,120.21x = 1,729,686.46 × 756,274.05 - Step 4: Simplify right side
1,153,120.21x = 1,308,116,984,334.36 - Step 5: Solve for x
x = 1,308,116,984,334.36/1,153,120.21 - Step 6: Final answer
x = 1,134,415.11
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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.