Finding the Fourth Proportional to 1,377,129.11, 1,900,317.14 and 765,243.09
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Solution
The fourth proportional to 1,377,129.11, 1,900,317.14 and 765,243.09 is: 1,055,968.21
Step by Step Solution
- Step 1: Write the proportion equation
1,377,129.11 : 1,900,317.14 = 765,243.09 : x - Step 2: Convert to fraction form
1,377,129.11/1,900,317.14 = 765,243.09/x - Step 3: Cross multiply
1,377,129.11x = 1,900,317.14 × 765,243.09 - Step 4: Simplify right side
1,377,129.11x = 1,454,204,556,367.35 - Step 5: Solve for x
x = 1,454,204,556,367.35/1,377,129.11 - Step 6: Final answer
x = 1,055,968.21
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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.