Finding the Fourth Proportional to 1,218,595.50, 1,681,272.99 and 789,204.78
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Solution
The fourth proportional to 1,218,595.50, 1,681,272.99 and 789,204.78 is: 1,088,850.80
Step by Step Solution
- Step 1: Write the proportion equation
1,218,595.50 : 1,681,272.99 = 789,204.78 : x - Step 2: Convert to fraction form
1,218,595.50/1,681,272.99 = 789,204.78/x - Step 3: Cross multiply
1,218,595.50x = 1,681,272.99 × 789,204.78 - Step 4: Simplify right side
1,218,595.50x = 1,326,868,680,192.89 - Step 5: Solve for x
x = 1,326,868,680,192.89/1,218,595.50 - Step 6: Final answer
x = 1,088,850.80
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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.