Finding the Fourth Proportional to 1,421,302.36, 1,961,745.74 and 809,815.94
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Solution
The fourth proportional to 1,421,302.36, 1,961,745.74 and 809,815.94 is: 1,117,744.55
Step by Step Solution
- Step 1: Write the proportion equation
1,421,302.36 : 1,961,745.74 = 809,815.94 : x - Step 2: Convert to fraction form
1,421,302.36/1,961,745.74 = 809,815.94/x - Step 3: Cross multiply
1,421,302.36x = 1,961,745.74 × 809,815.94 - Step 4: Simplify right side
1,421,302.36x = 1,588,652,970,479.10 - Step 5: Solve for x
x = 1,588,652,970,479.10/1,421,302.36 - Step 6: Final answer
x = 1,117,744.55
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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.