Finding the Fourth Proportional to 427,065.12, 589,439.97 and 355,375.26
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Solution
The fourth proportional to 427,065.12, 589,439.97 and 355,375.26 is: 490,492.84
Step by Step Solution
- Step 1: Write the proportion equation
427,065.12 : 589,439.97 = 355,375.26 : x - Step 2: Convert to fraction form
427,065.12/589,439.97 = 355,375.26/x - Step 3: Cross multiply
427,065.12x = 589,439.97 × 355,375.26 - Step 4: Simplify right side
427,065.12x = 209,472,382,593.14 - Step 5: Solve for x
x = 209,472,382,593.14/427,065.12 - Step 6: Final answer
x = 490,492.84
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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.