Finding the Fourth Proportional to 2,491,415.20, 3,735,740.40 and 993,815.20
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Solution
The fourth proportional to 2,491,415.20, 3,735,740.40 and 993,815.20 is: 1,490,171.37
Step by Step Solution
- Step 1: Write the proportion equation
2,491,415.20 : 3,735,740.40 = 993,815.20 : x - Step 2: Convert to fraction form
2,491,415.20/3,735,740.40 = 993,815.20/x - Step 3: Cross multiply
2,491,415.20x = 3,735,740.40 × 993,815.20 - Step 4: Simplify right side
2,491,415.20x = 3,712,635,592,774.08 - Step 5: Solve for x
x = 3,712,635,592,774.08/2,491,415.20 - Step 6: Final answer
x = 1,490,171.37
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1.5x scale
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.