Finding the Fourth Proportional to 3,910,039.74, 5,865,876.09 and 1,214,294.94
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Solution
The fourth proportional to 3,910,039.74, 5,865,876.09 and 1,214,294.94 is: 1,821,695.97
Step by Step Solution
- Step 1: Write the proportion equation
3,910,039.74 : 5,865,876.09 = 1,214,294.94 : x - Step 2: Convert to fraction form
3,910,039.74/5,865,876.09 = 1,214,294.94/x - Step 3: Cross multiply
3,910,039.74x = 5,865,876.09 × 1,214,294.94 - Step 4: Simplify right side
3,910,039.74x = 7,122,903,654,753.99 - Step 5: Solve for x
x = 7,122,903,654,753.99/3,910,039.74 - Step 6: Final answer
x = 1,821,695.97
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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.