Finding the Fourth Proportional to 3,058,382.47, 4,220,478.58 and 1,681,724.75
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Solution
The fourth proportional to 3,058,382.47, 4,220,478.58 and 1,681,724.75 is: 2,320,731.09
Step by Step Solution
- Step 1: Write the proportion equation
3,058,382.47 : 4,220,478.58 = 1,681,724.75 : x - Step 2: Convert to fraction form
3,058,382.47/4,220,478.58 = 1,681,724.75/x - Step 3: Cross multiply
3,058,382.47x = 4,220,478.58 × 1,681,724.75 - Step 4: Simplify right side
3,058,382.47x = 7,097,683,269,795.23 - Step 5: Solve for x
x = 7,097,683,269,795.23/3,058,382.47 - Step 6: Final answer
x = 2,320,731.09
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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.