Finding the Fourth Proportional to 1,099,757.68, 1,649,768.28 and 389,640.40
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Solution
The fourth proportional to 1,099,757.68, 1,649,768.28 and 389,640.40 is: 584,507.28
Step by Step Solution
- Step 1: Write the proportion equation
1,099,757.68 : 1,649,768.28 = 389,640.40 : x - Step 2: Convert to fraction form
1,099,757.68/1,649,768.28 = 389,640.40/x - Step 3: Cross multiply
1,099,757.68x = 1,649,768.28 × 389,640.40 - Step 4: Simplify right side
1,099,757.68x = 642,816,372,526.51 - Step 5: Solve for x
x = 642,816,372,526.51/1,099,757.68 - Step 6: Final answer
x = 584,507.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.