Finding the Fourth Proportional to 1,287,902.36, 1,776,942.96 and 804,957.68
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Solution
The fourth proportional to 1,287,902.36, 1,776,942.96 and 804,957.68 is: 1,110,615.16
Step by Step Solution
- Step 1: Write the proportion equation
1,287,902.36 : 1,776,942.96 = 804,957.68 : x - Step 2: Convert to fraction form
1,287,902.36/1,776,942.96 = 804,957.68/x - Step 3: Cross multiply
1,287,902.36x = 1,776,942.96 × 804,957.68 - Step 4: Simplify right side
1,287,902.36x = 1,430,363,882,573.93 - Step 5: Solve for x
x = 1,430,363,882,573.93/1,287,902.36 - Step 6: Final answer
x = 1,110,615.16
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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.