Finding the Fourth Proportional to 1,644,989.58, 2,270,072.79 and 919,838.70
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Solution
The fourth proportional to 1,644,989.58, 2,270,072.79 and 919,838.70 is: 1,269,370.23
Step by Step Solution
- Step 1: Write the proportion equation
1,644,989.58 : 2,270,072.79 = 919,838.70 : x - Step 2: Convert to fraction form
1,644,989.58/2,270,072.79 = 919,838.70/x - Step 3: Cross multiply
1,644,989.58x = 2,270,072.79 × 919,838.70 - Step 4: Simplify right side
1,644,989.58x = 2,088,100,804,058.97 - Step 5: Solve for x
x = 2,088,100,804,058.97/1,644,989.58 - Step 6: Final answer
x = 1,269,370.23
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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.