Finding the Fourth Proportional to 1,173,163.78, 1,618,965.98 and 636,619.78
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Solution
The fourth proportional to 1,173,163.78, 1,618,965.98 and 636,619.78 is: 878,535.28
Step by Step Solution
- Step 1: Write the proportion equation
1,173,163.78 : 1,618,965.98 = 636,619.78 : x - Step 2: Convert to fraction form
1,173,163.78/1,618,965.98 = 636,619.78/x - Step 3: Cross multiply
1,173,163.78x = 1,618,965.98 × 636,619.78 - Step 4: Simplify right side
1,173,163.78x = 1,030,665,766,015.08 - Step 5: Solve for x
x = 1,030,665,766,015.08/1,173,163.78 - Step 6: Final answer
x = 878,535.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.