Finding the Fourth Proportional to 1,125,583.36, 1,688,396.64 and 415,245.76
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Solution
The fourth proportional to 1,125,583.36, 1,688,396.64 and 415,245.76 is: 622,876.61
Step by Step Solution
- Step 1: Write the proportion equation
1,125,583.36 : 1,688,396.64 = 415,245.76 : x - Step 2: Convert to fraction form
1,125,583.36/1,688,396.64 = 415,245.76/x - Step 3: Cross multiply
1,125,583.36x = 1,688,396.64 × 415,245.76 - Step 4: Simplify right side
1,125,583.36x = 701,099,545,958.25 - Step 5: Solve for x
x = 701,099,545,958.25/1,125,583.36 - Step 6: Final answer
x = 622,876.61
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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.