Finding the Fourth Proportional to 1,689,529.25, 2,534,302.44 and 427,358.09
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Solution
The fourth proportional to 1,689,529.25, 2,534,302.44 and 427,358.09 is: 641,039.30
Step by Step Solution
- Step 1: Write the proportion equation
1,689,529.25 : 2,534,302.44 = 427,358.09 : x - Step 2: Convert to fraction form
1,689,529.25/2,534,302.44 = 427,358.09/x - Step 3: Cross multiply
1,689,529.25x = 2,534,302.44 × 427,358.09 - Step 4: Simplify right side
1,689,529.25x = 1,083,054,637,569.23 - Step 5: Solve for x
x = 1,083,054,637,569.23/1,689,529.25 - Step 6: Final answer
x = 641,039.30
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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.