Finding the Fourth Proportional to 1,288,318.72, 1,940,194 and 1,173,398.08
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Solution
The fourth proportional to 1,288,318.72, 1,940,194 and 1,173,398.08 is: 1,767,124.76
Step by Step Solution
- Step 1: Write the proportion equation
1,288,318.72 : 1,940,194 = 1,173,398.08 : x - Step 2: Convert to fraction form
1,288,318.72/1,940,194 = 1,173,398.08/x - Step 3: Cross multiply
1,288,318.72x = 1,940,194 × 1,173,398.08 - Step 4: Simplify right side
1,288,318.72x = 2,276,619,914,427.52 - Step 5: Solve for x
x = 2,276,619,914,427.52/1,288,318.72 - Step 6: Final answer
x = 1,767,124.76
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.