Finding the Fourth Proportional to 1,179,305.84, 1,627,487.16 and 642,761.84
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Solution
The fourth proportional to 1,179,305.84, 1,627,487.16 and 642,761.84 is: 887,035.92
Step by Step Solution
- Step 1: Write the proportion equation
1,179,305.84 : 1,627,487.16 = 642,761.84 : x - Step 2: Convert to fraction form
1,179,305.84/1,627,487.16 = 642,761.84/x - Step 3: Cross multiply
1,179,305.84x = 1,627,487.16 × 642,761.84 - Step 4: Simplify right side
1,179,305.84x = 1,046,086,641,537.97 - Step 5: Solve for x
x = 1,046,086,641,537.97/1,179,305.84 - Step 6: Final answer
x = 887,035.92
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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.