Finding the Fourth Proportional to 3,135,387.65, 4,702,578.06 and 860,380.76
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Solution
The fourth proportional to 3,135,387.65, 4,702,578.06 and 860,380.76 is: 1,290,432.99
Step by Step Solution
- Step 1: Write the proportion equation
3,135,387.65 : 4,702,578.06 = 860,380.76 : x - Step 2: Convert to fraction form
3,135,387.65/4,702,578.06 = 860,380.76/x - Step 3: Cross multiply
3,135,387.65x = 4,702,578.06 × 860,380.76 - Step 4: Simplify right side
3,135,387.65x = 4,046,007,661,709.24 - Step 5: Solve for x
x = 4,046,007,661,709.24/3,135,387.65 - Step 6: Final answer
x = 1,290,432.99
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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.