Finding the Fourth Proportional to 1,115,959.97, 1,538,579.27 and 722,793.41
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Solution
The fourth proportional to 1,115,959.97, 1,538,579.27 and 722,793.41 is: 996,518.68
Step by Step Solution
- Step 1: Write the proportion equation
1,115,959.97 : 1,538,579.27 = 722,793.41 : x - Step 2: Convert to fraction form
1,115,959.97/1,538,579.27 = 722,793.41/x - Step 3: Cross multiply
1,115,959.97x = 1,538,579.27 × 722,793.41 - Step 4: Simplify right side
1,115,959.97x = 1,112,074,957,118.61 - Step 5: Solve for x
x = 1,112,074,957,118.61/1,115,959.97 - Step 6: Final answer
x = 996,518.68
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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.