Finding the Fourth Proportional to 1,378,979.36, 1,902,213.96 and 827,554.04
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Solution
The fourth proportional to 1,378,979.36, 1,902,213.96 and 827,554.04 is: 1,141,557.95
Step by Step Solution
- Step 1: Write the proportion equation
1,378,979.36 : 1,902,213.96 = 827,554.04 : x - Step 2: Convert to fraction form
1,378,979.36/1,902,213.96 = 827,554.04/x - Step 3: Cross multiply
1,378,979.36x = 1,902,213.96 × 827,554.04 - Step 4: Simplify right side
1,378,979.36x = 1,574,184,847,542.40 - Step 5: Solve for x
x = 1,574,184,847,542.40/1,378,979.36 - Step 6: Final answer
x = 1,141,557.95
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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.