Finding the Fourth Proportional to 718,537.10, 1,078,514.76 and 381,576.79
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Solution
The fourth proportional to 718,537.10, 1,078,514.76 and 381,576.79 is: 572,741.75
Step by Step Solution
- Step 1: Write the proportion equation
718,537.10 : 1,078,514.76 = 381,576.79 : x - Step 2: Convert to fraction form
718,537.10/1,078,514.76 = 381,576.79/x - Step 3: Cross multiply
718,537.10x = 1,078,514.76 × 381,576.79 - Step 4: Simplify right side
718,537.10x = 411,536,194,695.85 - Step 5: Solve for x
x = 411,536,194,695.85/718,537.10 - Step 6: Final answer
x = 572,741.75
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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.