Finding the Fourth Proportional to 1,115,957.97, 1,538,576.51 and 722,791.41
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Solution
The fourth proportional to 1,115,957.97, 1,538,576.51 and 722,791.41 is: 996,515.92
Step by Step Solution
- Step 1: Write the proportion equation
1,115,957.97 : 1,538,576.51 = 722,791.41 : x - Step 2: Convert to fraction form
1,115,957.97/1,538,576.51 = 722,791.41/x - Step 3: Cross multiply
1,115,957.97x = 1,538,576.51 × 722,791.41 - Step 4: Simplify right side
1,115,957.97x = 1,112,069,886,862.76 - Step 5: Solve for x
x = 1,112,069,886,862.76/1,115,957.97 - Step 6: Final answer
x = 996,515.92
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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.