Finding the Fourth Proportional to 1,117,986.96, 1,542,744.18 and 634,561.95
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Solution
The fourth proportional to 1,117,986.96, 1,542,744.18 and 634,561.95 is: 875,651.32
Step by Step Solution
- Step 1: Write the proportion equation
1,117,986.96 : 1,542,744.18 = 634,561.95 : x - Step 2: Convert to fraction form
1,117,986.96/1,542,744.18 = 634,561.95/x - Step 3: Cross multiply
1,117,986.96x = 1,542,744.18 × 634,561.95 - Step 4: Simplify right side
1,117,986.96x = 978,966,755,211.95 - Step 5: Solve for x
x = 978,966,755,211.95/1,117,986.96 - Step 6: Final answer
x = 875,651.32
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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.