Finding the Fourth Proportional to 3,120,478.14, 4,306,176.56 and 1,743,832.59
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Solution
The fourth proportional to 3,120,478.14, 4,306,176.56 and 1,743,832.59 is: 2,406,442.44
Step by Step Solution
- Step 1: Write the proportion equation
3,120,478.14 : 4,306,176.56 = 1,743,832.59 : x - Step 2: Convert to fraction form
3,120,478.14/4,306,176.56 = 1,743,832.59/x - Step 3: Cross multiply
3,120,478.14x = 4,306,176.56 × 1,743,832.59 - Step 4: Simplify right side
3,120,478.14x = 7,509,251,023,622.09 - Step 5: Solve for x
x = 7,509,251,023,622.09/3,120,478.14 - Step 6: Final answer
x = 2,406,442.44
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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.