Finding the Fourth Proportional to 1,640,251.21, 2,263,548.09 and 915,099.08
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Solution
The fourth proportional to 1,640,251.21, 2,263,548.09 and 915,099.08 is: 1,262,837.52
Step by Step Solution
- Step 1: Write the proportion equation
1,640,251.21 : 2,263,548.09 = 915,099.08 : x - Step 2: Convert to fraction form
1,640,251.21/2,263,548.09 = 915,099.08/x - Step 3: Cross multiply
1,640,251.21x = 2,263,548.09 × 915,099.08 - Step 4: Simplify right side
1,640,251.21x = 2,071,370,774,694.76 - Step 5: Solve for x
x = 2,071,370,774,694.76/1,640,251.21 - Step 6: Final answer
x = 1,262,837.52
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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.