Finding the Fourth Proportional to 1,611,889.36, 2,222,880.57 and 1,031,296.21
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Solution
The fourth proportional to 1,611,889.36, 2,222,880.57 and 1,031,296.21 is: 1,422,211.95
Step by Step Solution
- Step 1: Write the proportion equation
1,611,889.36 : 2,222,880.57 = 1,031,296.21 : x - Step 2: Convert to fraction form
1,611,889.36/2,222,880.57 = 1,031,296.21/x - Step 3: Cross multiply
1,611,889.36x = 2,222,880.57 × 1,031,296.21 - Step 4: Simplify right side
1,611,889.36x = 2,292,448,301,566.44 - Step 5: Solve for x
x = 2,292,448,301,566.44/1,611,889.36 - Step 6: Final answer
x = 1,422,211.95
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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.