Finding the Fourth Proportional to 755,317.17, 1,042,350.96 and 411,162.99
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Solution
The fourth proportional to 755,317.17, 1,042,350.96 and 411,162.99 is: 567,412.15
Step by Step Solution
- Step 1: Write the proportion equation
755,317.17 : 1,042,350.96 = 411,162.99 : x - Step 2: Convert to fraction form
755,317.17/1,042,350.96 = 411,162.99/x - Step 3: Cross multiply
755,317.17x = 1,042,350.96 × 411,162.99 - Step 4: Simplify right side
755,317.17x = 428,576,137,342.97 - Step 5: Solve for x
x = 428,576,137,342.97/755,317.17 - Step 6: Final answer
x = 567,412.15
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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.