Finding the Fourth Proportional to 1,517,408.70, 2,276,113.05 and 1,330,784.70
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Solution
The fourth proportional to 1,517,408.70, 2,276,113.05 and 1,330,784.70 is: 1,996,177.05
Step by Step Solution
- Step 1: Write the proportion equation
1,517,408.70 : 2,276,113.05 = 1,330,784.70 : x - Step 2: Convert to fraction form
1,517,408.70/2,276,113.05 = 1,330,784.70/x - Step 3: Cross multiply
1,517,408.70x = 2,276,113.05 × 1,330,784.70 - Step 4: Simplify right side
1,517,408.70x = 3,029,016,422,410.33 - Step 5: Solve for x
x = 3,029,016,422,410.33/1,517,408.70 - Step 6: Final answer
x = 1,996,177.05
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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.