Finding the Fourth Proportional to 2,415,212.40, 3,618,671.40 and 1,276,287.60
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Solution
The fourth proportional to 2,415,212.40, 3,618,671.40 and 1,276,287.60 is: 1,912,239.87
Step by Step Solution
- Step 1: Write the proportion equation
2,415,212.40 : 3,618,671.40 = 1,276,287.60 : x - Step 2: Convert to fraction form
2,415,212.40/3,618,671.40 = 1,276,287.60/x - Step 3: Cross multiply
2,415,212.40x = 3,618,671.40 × 1,276,287.60 - Step 4: Simplify right side
2,415,212.40x = 4,618,465,436,294.64 - Step 5: Solve for x
x = 4,618,465,436,294.64/2,415,212.40 - Step 6: Final answer
x = 1,912,239.87
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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.