Finding the Fourth Proportional to 1,269,187.80, 1,903,788.26 and 427,746.84
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Solution
The fourth proportional to 1,269,187.80, 1,903,788.26 and 427,746.84 is: 641,622.47
Step by Step Solution
- Step 1: Write the proportion equation
1,269,187.80 : 1,903,788.26 = 427,746.84 : x - Step 2: Convert to fraction form
1,269,187.80/1,903,788.26 = 427,746.84/x - Step 3: Cross multiply
1,269,187.80x = 1,903,788.26 × 427,746.84 - Step 4: Simplify right side
1,269,187.80x = 814,339,412,244.10 - Step 5: Solve for x
x = 814,339,412,244.10/1,269,187.80 - Step 6: Final answer
x = 641,622.47
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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.