Finding the Fourth Proportional to 1,036,713.18, 1,555,069.77 and 438,349.98
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Solution
The fourth proportional to 1,036,713.18, 1,555,069.77 and 438,349.98 is: 657,524.97
Step by Step Solution
- Step 1: Write the proportion equation
1,036,713.18 : 1,555,069.77 = 438,349.98 : x - Step 2: Convert to fraction form
1,036,713.18/1,555,069.77 = 438,349.98/x - Step 3: Cross multiply
1,036,713.18x = 1,555,069.77 × 438,349.98 - Step 4: Simplify right side
1,036,713.18x = 681,664,802,578.11 - Step 5: Solve for x
x = 681,664,802,578.11/1,036,713.18 - Step 6: Final answer
x = 657,524.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.