Finding the Fourth Proportional to 3,259,637.40, 4,886,462.61 and 1,128,230.94
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Solution
The fourth proportional to 3,259,637.40, 4,886,462.61 and 1,128,230.94 is: 1,691,310.30
Step by Step Solution
- Step 1: Write the proportion equation
3,259,637.40 : 4,886,462.61 = 1,128,230.94 : x - Step 2: Convert to fraction form
3,259,637.40/4,886,462.61 = 1,128,230.94/x - Step 3: Cross multiply
3,259,637.40x = 4,886,462.61 × 1,128,230.94 - Step 4: Simplify right side
3,259,637.40x = 5,513,058,303,755.15 - Step 5: Solve for x
x = 5,513,058,303,755.15/3,259,637.40 - Step 6: Final answer
x = 1,691,310.30
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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.