Finding the Fourth Proportional to 1,379,866.64, 1,903,990.16 and 798,882.80
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Solution
The fourth proportional to 1,379,866.64, 1,903,990.16 and 798,882.80 is: 1,102,327.53
Step by Step Solution
- Step 1: Write the proportion equation
1,379,866.64 : 1,903,990.16 = 798,882.80 : x - Step 2: Convert to fraction form
1,379,866.64/1,903,990.16 = 798,882.80/x - Step 3: Cross multiply
1,379,866.64x = 1,903,990.16 × 798,882.80 - Step 4: Simplify right side
1,379,866.64x = 1,521,064,990,193.25 - Step 5: Solve for x
x = 1,521,064,990,193.25/1,379,866.64 - Step 6: Final answer
x = 1,102,327.53
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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.