Finding the Fourth Proportional to 1,220,343.40, 1,830,495.48 and 378,895.96
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Solution
The fourth proportional to 1,220,343.40, 1,830,495.48 and 378,895.96 is: 568,337.85
Step by Step Solution
- Step 1: Write the proportion equation
1,220,343.40 : 1,830,495.48 = 378,895.96 : x - Step 2: Convert to fraction form
1,220,343.40/1,830,495.48 = 378,895.96/x - Step 3: Cross multiply
1,220,343.40x = 1,830,495.48 × 378,895.96 - Step 4: Simplify right side
1,220,343.40x = 693,567,342,170.26 - Step 5: Solve for x
x = 693,567,342,170.26/1,220,343.40 - Step 6: Final answer
x = 568,337.85
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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.