Finding the Fourth Proportional to 1,528,965.09, 2,295,219.33 and 820,377.09
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Solution
The fourth proportional to 1,528,965.09, 2,295,219.33 and 820,377.09 is: 1,231,516.25
Step by Step Solution
- Step 1: Write the proportion equation
1,528,965.09 : 2,295,219.33 = 820,377.09 : x - Step 2: Convert to fraction form
1,528,965.09/2,295,219.33 = 820,377.09/x - Step 3: Cross multiply
1,528,965.09x = 2,295,219.33 × 820,377.09 - Step 4: Simplify right side
1,528,965.09x = 1,882,945,354,857.15 - Step 5: Solve for x
x = 1,882,945,354,857.15/1,528,965.09 - Step 6: Final answer
x = 1,231,516.25
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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.