Finding the Fourth Proportional to 512,431.18, 769,113.23 and 272,746.31
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Solution
The fourth proportional to 512,431.18, 769,113.23 and 272,746.31 is: 409,367.73
Step by Step Solution
- Step 1: Write the proportion equation
512,431.18 : 769,113.23 = 272,746.31 : x - Step 2: Convert to fraction form
512,431.18/769,113.23 = 272,746.31/x - Step 3: Cross multiply
512,431.18x = 769,113.23 × 272,746.31 - Step 4: Simplify right side
512,431.18x = 209,772,790,245.38 - Step 5: Solve for x
x = 209,772,790,245.38/512,431.18 - Step 6: Final answer
x = 409,367.73
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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.