Finding the Fourth Proportional to 3,072,645.09, 4,242,247.56 and 2,749,800.15
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Solution
The fourth proportional to 3,072,645.09, 4,242,247.56 and 2,749,800.15 is: 3,796,511.68
Step by Step Solution
- Step 1: Write the proportion equation
3,072,645.09 : 4,242,247.56 = 2,749,800.15 : x - Step 2: Convert to fraction form
3,072,645.09/4,242,247.56 = 2,749,800.15/x - Step 3: Cross multiply
3,072,645.09x = 4,242,247.56 × 2,749,800.15 - Step 4: Simplify right side
3,072,645.09x = 11,665,332,976,825.13 - Step 5: Solve for x
x = 11,665,332,976,825.13/3,072,645.09 - Step 6: Final answer
x = 3,796,511.68
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1.5x scale
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.