Finding the Fourth Proportional to 1,905,628.32, 2,629,771.52 and 1,046,243.88
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Solution
The fourth proportional to 1,905,628.32, 2,629,771.52 and 1,046,243.88 is: 1,443,818.99
Step by Step Solution
- Step 1: Write the proportion equation
1,905,628.32 : 2,629,771.52 = 1,046,243.88 : x - Step 2: Convert to fraction form
1,905,628.32/2,629,771.52 = 1,046,243.88/x - Step 3: Cross multiply
1,905,628.32x = 2,629,771.52 × 1,046,243.88 - Step 4: Simplify right side
1,905,628.32x = 2,751,382,353,367.08 - Step 5: Solve for x
x = 2,751,382,353,367.08/1,905,628.32 - Step 6: Final answer
x = 1,443,818.99
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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.