Finding the Fourth Proportional to 1,055,918.32, 1,458,369.84 and 715,796.08
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Solution
The fourth proportional to 1,055,918.32, 1,458,369.84 and 715,796.08 is: 988,613.79
Step by Step Solution
- Step 1: Write the proportion equation
1,055,918.32 : 1,458,369.84 = 715,796.08 : x - Step 2: Convert to fraction form
1,055,918.32/1,458,369.84 = 715,796.08/x - Step 3: Cross multiply
1,055,918.32x = 1,458,369.84 × 715,796.08 - Step 4: Simplify right side
1,055,918.32x = 1,043,895,414,662.23 - Step 5: Solve for x
x = 1,043,895,414,662.23/1,055,918.32 - Step 6: Final answer
x = 988,613.79
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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.