Finding the Fourth Proportional to 1,331,761.49, 1,836,605.21 and 872,709.33
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Solution
The fourth proportional to 1,331,761.49, 1,836,605.21 and 872,709.33 is: 1,203,535.71
Step by Step Solution
- Step 1: Write the proportion equation
1,331,761.49 : 1,836,605.21 = 872,709.33 : x - Step 2: Convert to fraction form
1,331,761.49/1,836,605.21 = 872,709.33/x - Step 3: Cross multiply
1,331,761.49x = 1,836,605.21 × 872,709.33 - Step 4: Simplify right side
1,331,761.49x = 1,602,822,497,930.06 - Step 5: Solve for x
x = 1,602,822,497,930.06/1,331,761.49 - Step 6: Final answer
x = 1,203,535.71
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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.