Finding the Fourth Proportional to 1,004,102.93, 1,385,315.70 and 641,738.90
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Solution
The fourth proportional to 1,004,102.93, 1,385,315.70 and 641,738.90 is: 885,378.33
Step by Step Solution
- Step 1: Write the proportion equation
1,004,102.93 : 1,385,315.70 = 641,738.90 : x - Step 2: Convert to fraction form
1,004,102.93/1,385,315.70 = 641,738.90/x - Step 3: Cross multiply
1,004,102.93x = 1,385,315.70 × 641,738.90 - Step 4: Simplify right side
1,004,102.93x = 889,010,974,527.50 - Step 5: Solve for x
x = 889,010,974,527.50/1,004,102.93 - Step 6: Final answer
x = 885,378.33
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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.