Finding the Fourth Proportional to 355,564.19, 491,074.67 and 328,659.99
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Solution
The fourth proportional to 355,564.19, 491,074.67 and 328,659.99 is: 453,916.90
Step by Step Solution
- Step 1: Write the proportion equation
355,564.19 : 491,074.67 = 328,659.99 : x - Step 2: Convert to fraction form
355,564.19/491,074.67 = 328,659.99/x - Step 3: Cross multiply
355,564.19x = 491,074.67 × 328,659.99 - Step 4: Simplify right side
355,564.19x = 161,396,596,376.66 - Step 5: Solve for x
x = 161,396,596,376.66/355,564.19 - Step 6: Final answer
x = 453,916.90
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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.