Finding the Fourth Proportional to 1,153,120.71, 1,729,687.21 and 756,274.55
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Solution
The fourth proportional to 1,153,120.71, 1,729,687.21 and 756,274.55 is: 1,134,415.86
Step by Step Solution
- Step 1: Write the proportion equation
1,153,120.71 : 1,729,687.21 = 756,274.55 : x - Step 2: Convert to fraction form
1,153,120.71/1,729,687.21 = 756,274.55/x - Step 3: Cross multiply
1,153,120.71x = 1,729,687.21 × 756,274.55 - Step 4: Simplify right side
1,153,120.71x = 1,308,118,416,383.51 - Step 5: Solve for x
x = 1,308,118,416,383.51/1,153,120.71 - Step 6: Final answer
x = 1,134,415.86
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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.