Finding the Fourth Proportional to 1,275,073.58, 1,759,533.64 and 731,183.09
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Solution
The fourth proportional to 1,275,073.58, 1,759,533.64 and 731,183.09 is: 1,008,993.72
Step by Step Solution
- Step 1: Write the proportion equation
1,275,073.58 : 1,759,533.64 = 731,183.09 : x - Step 2: Convert to fraction form
1,275,073.58/1,759,533.64 = 731,183.09/x - Step 3: Cross multiply
1,275,073.58x = 1,759,533.64 × 731,183.09 - Step 4: Simplify right side
1,275,073.58x = 1,286,541,233,228.52 - Step 5: Solve for x
x = 1,286,541,233,228.52/1,275,073.58 - Step 6: Final answer
x = 1,008,993.72
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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.