Finding the Fourth Proportional to 1,379,778.80, 2,072,029.80 and 749,922.80
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Solution
The fourth proportional to 1,379,778.80, 2,072,029.80 and 749,922.80 is: 1,126,167.75
Step by Step Solution
- Step 1: Write the proportion equation
1,379,778.80 : 2,072,029.80 = 749,922.80 : x - Step 2: Convert to fraction form
1,379,778.80/2,072,029.80 = 749,922.80/x - Step 3: Cross multiply
1,379,778.80x = 2,072,029.80 × 749,922.80 - Step 4: Simplify right side
1,379,778.80x = 1,553,862,389,299.44 - Step 5: Solve for x
x = 1,553,862,389,299.44/1,379,778.80 - Step 6: Final answer
x = 1,126,167.75
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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.