Finding the Fourth Proportional to 1,207,329.12, 1,811,355.84 and 487,300.38
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Solution
The fourth proportional to 1,207,329.12, 1,811,355.84 and 487,300.38 is: 731,096.74
Step by Step Solution
- Step 1: Write the proportion equation
1,207,329.12 : 1,811,355.84 = 487,300.38 : x - Step 2: Convert to fraction form
1,207,329.12/1,811,355.84 = 487,300.38/x - Step 3: Cross multiply
1,207,329.12x = 1,811,355.84 × 487,300.38 - Step 4: Simplify right side
1,207,329.12x = 882,674,389,147.22 - Step 5: Solve for x
x = 882,674,389,147.22/1,207,329.12 - Step 6: Final answer
x = 731,096.74
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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.