Finding the Fourth Proportional to 2,261,672.39, 3,121,132.01 and 1,229,180.18
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Solution
The fourth proportional to 2,261,672.39, 3,121,132.01 and 1,229,180.18 is: 1,696,281.75
Step by Step Solution
- Step 1: Write the proportion equation
2,261,672.39 : 3,121,132.01 = 1,229,180.18 : x - Step 2: Convert to fraction form
2,261,672.39/3,121,132.01 = 1,229,180.18/x - Step 3: Cross multiply
2,261,672.39x = 3,121,132.01 × 1,229,180.18 - Step 4: Simplify right side
2,261,672.39x = 3,836,433,584,104.00 - Step 5: Solve for x
x = 3,836,433,584,104.00/2,261,672.39 - Step 6: Final answer
x = 1,696,281.75
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1.5x scale
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.