Finding the Fourth Proportional to 5,278,503.75, 7,284,374.06 and 2,864,055.75
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Solution
The fourth proportional to 5,278,503.75, 7,284,374.06 and 2,864,055.75 is: 3,952,418.03
Step by Step Solution
- Step 1: Write the proportion equation
5,278,503.75 : 7,284,374.06 = 2,864,055.75 : x - Step 2: Convert to fraction form
5,278,503.75/7,284,374.06 = 2,864,055.75/x - Step 3: Cross multiply
5,278,503.75x = 7,284,374.06 × 2,864,055.75 - Step 4: Simplify right side
5,278,503.75x = 20,862,853,397,373.57 - Step 5: Solve for x
x = 20,862,853,397,373.57/5,278,503.75 - Step 6: Final answer
x = 3,952,418.03
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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.