Finding the Fourth Proportional to 1,100,474.95, 1,518,515.13 and 641,474.68
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Solution
The fourth proportional to 1,100,474.95, 1,518,515.13 and 641,474.68 is: 885,153.28
Step by Step Solution
- Step 1: Write the proportion equation
1,100,474.95 : 1,518,515.13 = 641,474.68 : x - Step 2: Convert to fraction form
1,100,474.95/1,518,515.13 = 641,474.68/x - Step 3: Cross multiply
1,100,474.95x = 1,518,515.13 × 641,474.68 - Step 4: Simplify right side
1,100,474.95x = 974,089,007,091.91 - Step 5: Solve for x
x = 974,089,007,091.91/1,100,474.95 - Step 6: Final answer
x = 885,153.28
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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.