Finding the Fourth Proportional to 2,319,258.40, 3,200,468.11 and 1,286,755.20
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Solution
The fourth proportional to 2,319,258.40, 3,200,468.11 and 1,286,755.20 is: 1,775,661.99
Step by Step Solution
- Step 1: Write the proportion equation
2,319,258.40 : 3,200,468.11 = 1,286,755.20 : x - Step 2: Convert to fraction form
2,319,258.40/3,200,468.11 = 1,286,755.20/x - Step 3: Cross multiply
2,319,258.40x = 3,200,468.11 × 1,286,755.20 - Step 4: Simplify right side
2,319,258.40x = 4,118,218,979,759.78 - Step 5: Solve for x
x = 4,118,218,979,759.78/2,319,258.40 - Step 6: Final answer
x = 1,775,661.99
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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.