Finding the Fourth Proportional to 512,808.10, 769,904.70 and 299,794.30
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Solution
The fourth proportional to 512,808.10, 769,904.70 and 299,794.30 is: 450,096.32
Step by Step Solution
- Step 1: Write the proportion equation
512,808.10 : 769,904.70 = 299,794.30 : x - Step 2: Convert to fraction form
512,808.10/769,904.70 = 299,794.30/x - Step 3: Cross multiply
512,808.10x = 769,904.70 × 299,794.30 - Step 4: Simplify right side
512,808.10x = 230,813,040,603.21 - Step 5: Solve for x
x = 230,813,040,603.21/512,808.10 - Step 6: Final answer
x = 450,096.32
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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.