Finding the Fourth Proportional to 2,142,716.54, 2,957,034.12 and 1,175,881.44
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Solution
The fourth proportional to 2,142,716.54, 2,957,034.12 and 1,175,881.44 is: 1,622,763.20
Step by Step Solution
- Step 1: Write the proportion equation
2,142,716.54 : 2,957,034.12 = 1,175,881.44 : x - Step 2: Convert to fraction form
2,142,716.54/2,957,034.12 = 1,175,881.44/x - Step 3: Cross multiply
2,142,716.54x = 2,957,034.12 × 1,175,881.44 - Step 4: Simplify right side
2,142,716.54x = 3,477,121,539,154.73 - Step 5: Solve for x
x = 3,477,121,539,154.73/2,142,716.54 - Step 6: Final answer
x = 1,622,763.20
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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.