Finding the Fourth Proportional to 1,247,513.97, 1,721,146.41 and 1,017,673.94
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Solution
The fourth proportional to 1,247,513.97, 1,721,146.41 and 1,017,673.94 is: 1,404,045.07
Step by Step Solution
- Step 1: Write the proportion equation
1,247,513.97 : 1,721,146.41 = 1,017,673.94 : x - Step 2: Convert to fraction form
1,247,513.97/1,721,146.41 = 1,017,673.94/x - Step 3: Cross multiply
1,247,513.97x = 1,721,146.41 × 1,017,673.94 - Step 4: Simplify right side
1,247,513.97x = 1,751,565,839,775.82 - Step 5: Solve for x
x = 1,751,565,839,775.82/1,247,513.97 - Step 6: Final answer
x = 1,404,045.07
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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.