Finding the Fourth Proportional to 1,201,647.38, 1,658,159.97 and 718,116.26
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Solution
The fourth proportional to 1,201,647.38, 1,658,159.97 and 718,116.26 is: 990,932.66
Step by Step Solution
- Step 1: Write the proportion equation
1,201,647.38 : 1,658,159.97 = 718,116.26 : x - Step 2: Convert to fraction form
1,201,647.38/1,658,159.97 = 718,116.26/x - Step 3: Cross multiply
1,201,647.38x = 1,658,159.97 × 718,116.26 - Step 4: Simplify right side
1,201,647.38x = 1,190,751,636,138.11 - Step 5: Solve for x
x = 1,190,751,636,138.11/1,201,647.38 - Step 6: Final answer
x = 990,932.66
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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.