Finding the Fourth Proportional to 1,324,341.40, 1,985,129.70 and 724,379.80
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Solution
The fourth proportional to 1,324,341.40, 1,985,129.70 and 724,379.80 is: 1,085,813.56
Step by Step Solution
- Step 1: Write the proportion equation
1,324,341.40 : 1,985,129.70 = 724,379.80 : x - Step 2: Convert to fraction form
1,324,341.40/1,985,129.70 = 724,379.80/x - Step 3: Cross multiply
1,324,341.40x = 1,985,129.70 × 724,379.80 - Step 4: Simplify right side
1,324,341.40x = 1,437,987,855,060.06 - Step 5: Solve for x
x = 1,437,987,855,060.06/1,324,341.40 - Step 6: Final answer
x = 1,085,813.56
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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.