Finding the Fourth Proportional to 1,007,991.18, 1,512,208.05 and 740,942.08
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Solution
The fourth proportional to 1,007,991.18, 1,512,208.05 and 740,942.08 is: 1,111,575.77
Step by Step Solution
- Step 1: Write the proportion equation
1,007,991.18 : 1,512,208.05 = 740,942.08 : x - Step 2: Convert to fraction form
1,007,991.18/1,512,208.05 = 740,942.08/x - Step 3: Cross multiply
1,007,991.18x = 1,512,208.05 × 740,942.08 - Step 4: Simplify right side
1,007,991.18x = 1,120,458,574,179.22 - Step 5: Solve for x
x = 1,120,458,574,179.22/1,007,991.18 - Step 6: Final answer
x = 1,111,575.77
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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.