Finding the Fourth Proportional to 1,361,078.79, 2,040,437.13 and 686,597.05
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Solution
The fourth proportional to 1,361,078.79, 2,040,437.13 and 686,597.05 is: 1,029,299.79
Step by Step Solution
- Step 1: Write the proportion equation
1,361,078.79 : 2,040,437.13 = 686,597.05 : x - Step 2: Convert to fraction form
1,361,078.79/2,040,437.13 = 686,597.05/x - Step 3: Cross multiply
1,361,078.79x = 2,040,437.13 × 686,597.05 - Step 4: Simplify right side
1,361,078.79x = 1,400,958,114,168.47 - Step 5: Solve for x
x = 1,400,958,114,168.47/1,361,078.79 - Step 6: Final answer
x = 1,029,299.79
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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.