Finding the Fourth Proportional to 1,531,039.49, 2,112,817.87 and 842,696.63
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Solution
The fourth proportional to 1,531,039.49, 2,112,817.87 and 842,696.63 is: 1,162,912.20
Step by Step Solution
- Step 1: Write the proportion equation
1,531,039.49 : 2,112,817.87 = 842,696.63 : x - Step 2: Convert to fraction form
1,531,039.49/2,112,817.87 = 842,696.63/x - Step 3: Cross multiply
1,531,039.49x = 2,112,817.87 × 842,696.63 - Step 4: Simplify right side
1,531,039.49x = 1,780,464,497,265.13 - Step 5: Solve for x
x = 1,780,464,497,265.13/1,531,039.49 - Step 6: Final answer
x = 1,162,912.20
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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.