Finding the Fourth Proportional to 784,220.80, 1,176,720.36 and 310,895.68
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Solution
The fourth proportional to 784,220.80, 1,176,720.36 and 310,895.68 is: 466,497.80
Step by Step Solution
- Step 1: Write the proportion equation
784,220.80 : 1,176,720.36 = 310,895.68 : x - Step 2: Convert to fraction form
784,220.80/1,176,720.36 = 310,895.68/x - Step 3: Cross multiply
784,220.80x = 1,176,720.36 × 310,895.68 - Step 4: Simplify right side
784,220.80x = 365,837,276,492.05 - Step 5: Solve for x
x = 365,837,276,492.05/784,220.80 - Step 6: Final answer
x = 466,497.80
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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.