Finding the Fourth Proportional to 3,487,857.76, 5,231,083.76 and 2,190,430.65
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Solution
The fourth proportional to 3,487,857.76, 5,231,083.76 and 2,190,430.65 is: 3,285,204.56
Step by Step Solution
- Step 1: Write the proportion equation
3,487,857.76 : 5,231,083.76 = 2,190,430.65 : x - Step 2: Convert to fraction form
3,487,857.76/5,231,083.76 = 2,190,430.65/x - Step 3: Cross multiply
3,487,857.76x = 5,231,083.76 × 2,190,430.65 - Step 4: Simplify right side
3,487,857.76x = 11,458,326,200,621.24 - Step 5: Solve for x
x = 11,458,326,200,621.24/3,487,857.76 - Step 6: Final answer
x = 3,285,204.56
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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.