Finding the Fourth Proportional to 838,141.36, 1,257,407.24 and 239,110.72
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Solution
The fourth proportional to 838,141.36, 1,257,407.24 and 239,110.72 is: 358,721.77
Step by Step Solution
- Step 1: Write the proportion equation
838,141.36 : 1,257,407.24 = 239,110.72 : x - Step 2: Convert to fraction form
838,141.36/1,257,407.24 = 239,110.72/x - Step 3: Cross multiply
838,141.36x = 1,257,407.24 × 239,110.72 - Step 4: Simplify right side
838,141.36x = 300,659,550,489.61 - Step 5: Solve for x
x = 300,659,550,489.61/838,141.36 - Step 6: Final answer
x = 358,721.77
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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.