Finding the Fourth Proportional to 1,117,627.48, 1,542,283.06 and 634,163.80
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Solution
The fourth proportional to 1,117,627.48, 1,542,283.06 and 634,163.80 is: 875,121.72
Step by Step Solution
- Step 1: Write the proportion equation
1,117,627.48 : 1,542,283.06 = 634,163.80 : x - Step 2: Convert to fraction form
1,117,627.48/1,542,283.06 = 634,163.80/x - Step 3: Cross multiply
1,117,627.48x = 1,542,283.06 × 634,163.80 - Step 4: Simplify right side
1,117,627.48x = 978,060,086,005.23 - Step 5: Solve for x
x = 978,060,086,005.23/1,117,627.48 - Step 6: Final answer
x = 875,121.72
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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.