Finding the Fourth Proportional to 784,121.60, 1,082,106.46 and 439,982.99
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Solution
The fourth proportional to 784,121.60, 1,082,106.46 and 439,982.99 is: 607,186.99
Step by Step Solution
- Step 1: Write the proportion equation
784,121.60 : 1,082,106.46 = 439,982.99 : x - Step 2: Convert to fraction form
784,121.60/1,082,106.46 = 439,982.99/x - Step 3: Cross multiply
784,121.60x = 1,082,106.46 × 439,982.99 - Step 4: Simplify right side
784,121.60x = 476,108,429,258.63 - Step 5: Solve for x
x = 476,108,429,258.63/784,121.60 - Step 6: Final answer
x = 607,186.99
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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.