Finding the Fourth Proportional to 1,657,212.26, 2,485,871.86 and 459,146.12
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Solution
The fourth proportional to 1,657,212.26, 2,485,871.86 and 459,146.12 is: 688,733.99
Step by Step Solution
- Step 1: Write the proportion equation
1,657,212.26 : 2,485,871.86 = 459,146.12 : x - Step 2: Convert to fraction form
1,657,212.26/2,485,871.86 = 459,146.12/x - Step 3: Cross multiply
1,657,212.26x = 2,485,871.86 × 459,146.12 - Step 4: Simplify right side
1,657,212.26x = 1,141,378,419,336.18 - Step 5: Solve for x
x = 1,141,378,419,336.18/1,657,212.26 - Step 6: Final answer
x = 688,733.99
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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.