Finding the Fourth Proportional to 1,932,961.46, 2,673,266.79 and 1,690,823.19
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Solution
The fourth proportional to 1,932,961.46, 2,673,266.79 and 1,690,823.19 is: 2,338,391.95
Step by Step Solution
- Step 1: Write the proportion equation
1,932,961.46 : 2,673,266.79 = 1,690,823.19 : x - Step 2: Convert to fraction form
1,932,961.46/2,673,266.79 = 1,690,823.19/x - Step 3: Cross multiply
1,932,961.46x = 2,673,266.79 × 1,690,823.19 - Step 4: Simplify right side
1,932,961.46x = 4,520,021,497,954.20 - Step 5: Solve for x
x = 4,520,021,497,954.20/1,932,961.46 - Step 6: Final answer
x = 2,338,391.95
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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.