Finding the Fourth Proportional to 1,638,276.71, 2,455,639.94 and 838,461.65
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Solution
The fourth proportional to 1,638,276.71, 2,455,639.94 and 838,461.65 is: 1,256,783.97
Step by Step Solution
- Step 1: Write the proportion equation
1,638,276.71 : 2,455,639.94 = 838,461.65 : x - Step 2: Convert to fraction form
1,638,276.71/2,455,639.94 = 838,461.65/x - Step 3: Cross multiply
1,638,276.71x = 2,455,639.94 × 838,461.65 - Step 4: Simplify right side
1,638,276.71x = 2,058,959,902,572.02 - Step 5: Solve for x
x = 2,058,959,902,572.02/1,638,276.71 - Step 6: Final answer
x = 1,256,783.97
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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.