Finding the Fourth Proportional to 1,368,415.80, 2,052,913.48 and 408,946.10
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Solution
The fourth proportional to 1,368,415.80, 2,052,913.48 and 408,946.10 is: 613,505.75
Step by Step Solution
- Step 1: Write the proportion equation
1,368,415.80 : 2,052,913.48 = 408,946.10 : x - Step 2: Convert to fraction form
1,368,415.80/2,052,913.48 = 408,946.10/x - Step 3: Cross multiply
1,368,415.80x = 2,052,913.48 × 408,946.10 - Step 4: Simplify right side
1,368,415.80x = 839,530,961,283.43 - Step 5: Solve for x
x = 839,530,961,283.43/1,368,415.80 - Step 6: Final answer
x = 613,505.75
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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.