Finding the Fourth Proportional to 1,207,982.23, 1,667,026.70 and 664,121.85
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Solution
The fourth proportional to 1,207,982.23, 1,667,026.70 and 664,121.85 is: 916,494.32
Step by Step Solution
- Step 1: Write the proportion equation
1,207,982.23 : 1,667,026.70 = 664,121.85 : x - Step 2: Convert to fraction form
1,207,982.23/1,667,026.70 = 664,121.85/x - Step 3: Cross multiply
1,207,982.23x = 1,667,026.70 × 664,121.85 - Step 4: Simplify right side
1,207,982.23x = 1,107,108,849,982.07 - Step 5: Solve for x
x = 1,107,108,849,982.07/1,207,982.23 - Step 6: Final answer
x = 916,494.32
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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.