Finding the Fourth Proportional to 3,118,044.38, 4,302,914.20 and 1,687,260.38
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Solution
The fourth proportional to 3,118,044.38, 4,302,914.20 and 1,687,260.38 is: 2,328,426.33
Step by Step Solution
- Step 1: Write the proportion equation
3,118,044.38 : 4,302,914.20 = 1,687,260.38 : x - Step 2: Convert to fraction form
3,118,044.38/4,302,914.20 = 1,687,260.38/x - Step 3: Cross multiply
3,118,044.38x = 4,302,914.20 × 1,687,260.38 - Step 4: Simplify right side
3,118,044.38x = 7,260,136,622,466.67 - Step 5: Solve for x
x = 7,260,136,622,466.67/3,118,044.38 - Step 6: Final answer
x = 2,328,426.33
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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.