Finding the Fourth Proportional to 755,284.72, 1,042,319.28 and 411,148.99
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Solution
The fourth proportional to 755,284.72, 1,042,319.28 and 411,148.99 is: 567,399.96
Step by Step Solution
- Step 1: Write the proportion equation
755,284.72 : 1,042,319.28 = 411,148.99 : x - Step 2: Convert to fraction form
755,284.72/1,042,319.28 = 411,148.99/x - Step 3: Cross multiply
755,284.72x = 1,042,319.28 × 411,148.99 - Step 4: Simplify right side
755,284.72x = 428,548,519,229.53 - Step 5: Solve for x
x = 428,548,519,229.53/755,284.72 - Step 6: Final answer
x = 567,399.96
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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.